Credits and Attributions [2019 – 2020]

Nov 30, 2019 – Giraffes


Chee Zee Jungle – Primal Drive by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)

Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100684

Artist: http://incompetech.com/

Dec 22, 2019 – Jellyfish

None

Dec 29, 2019 – Climate Change

https://climate.nasa.gov
https://www.noaa.gov/climate

Jan 5, 2020 – Vaccines


https://www.webmd.com/brain/autism/do-vaccines-cause-autism#1
https://chadd.org/adhd-weekly/vaccines-have-no-role-in-adhd/

Public Domain Photos (Wikimedia Commons):
https://upload.wikimedia.org/wikipedia/commons/2/26/4311800266_3c7029dc5f_bSmallpox.jpg
Otis Historical Archives of “National Museum of Health & Medicine” (OTIS Archive 1) [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]

https://upload.wikimedia.org/wikipedia/commons/9/95/Washington_Crossing_the_Delaware_by_Emanuel_Leutze%2C_MMA-NYC%2C_1851.jpg
Emanuel Leutze [Public domain]

https://upload.wikimedia.org/wikipedia/commons/8/84/Watercolour_drawings_showing_smallpox_and_cowpox_inoculation._Wellcome_L0015949.jpg
See page for author [CC BY 4.0 (https://creativecommons.org/licenses/by/4.0)]

https://upload.wikimedia.org/wikipedia/commons/6/6b/Smallpox_vaccine_site.jpg
Nathaniel C. Sheetz [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]

https://upload.wikimedia.org/wikipedia/commons/7/70/Melingue_Jenner_peint.jpg
Gaston Mélingue [Public domain]

Jan 12, 2020 – African Penguins


Book your trip to see the penguins yourself (or donate to the conservation efforts):
https://www.capenature.co.za/reserves/stony-point-nature-reserve/
https://www.sanparks.org/parks/table_mountain/tourism/attractions.php#boulders

Jan 19, 2020 – Quantum Supremacy


Article Publication: Arute, F., Arya, K., Babbush, R. et al. Quantum supremacy using a programmable superconducting processor. Nature 574, 505–510 (2019) doi:10.1038/s41586-019-1666-5

Code Blue by Audionautix is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/

1. https://commons.wikimedia.org/wiki/File:Summit_(supercomputer).jpg
https://upload.wikimedia.org/wikipedia/commons/b/b4/Summit_%28supercomputer%29.jpg
Carlos Jones/ORNL [CC BY (https://creativecommons.org/licenses/by/2.0)]

2. https://commons.wikimedia.org/wiki/File:Summit_Supercomputer_2018.jpg
https://upload.wikimedia.org/wikipedia/commons/1/13/Summit_Supercomputer_2018.jpg
OLCF at ORNL [CC BY (https://creativecommons.org/licenses/by/2.0)]NASA Ames, John Hardman photos of sycamore,
https://www.nasa.gov/ames/nasa-experts-available-for-interviews-about-quantum-computing/

3.https://commons.wikimedia.org/wiki/File:Avion_III_de_Cl%C3%A9ment_Ader.jpg
https://upload.wikimedia.org/wikipedia/commons/3/35/Avion_III_de_Cl%C3%A9ment_Ader.jpg
No machine-readable author provided. Chosovi assumed (based on copyright claims). [CC BY-SA (https://creativecommons.org/licenses/by-sa/2.5)]

4. Qubit Bloch Sphere – https://freesvg.org/qubit-bloch-sphere

https://creativecommons.org/publicdomain/zero/1.0/

5. Pink Progress Bar – https://freesvg.org/pink-progress-bar

6. Sad computer monitor vector drawing –https://freesvg.org/sad-computer-monitor-vector-drawing

7. Hourglass – https://freesvg.org/nicubunu-hourglass

8. https://commons.wikimedia.org/wiki/File:Magnetic-force-of-electron-spin-at-nonuniform-magnetic-field_jp.svg
https://upload.wikimedia.org/wikipedia/commons/5/5e/Magnetic-force-of-electron-spin-at-nonuniform-magnetic-field_jp.svg
すじにくシチュー [CC0]

9. Quantum Particles 1, James Childs – https://www.publicdomainpictures.net/en/view-image.php?image=22968&picture=1&jazyk=SE

10. Maschen Uncertainty Priniciple or wave-particle duality
https://en.wikipedia.org/wiki/File:Uncertainty_principle.svg
https://upload.wikimedia.org/wikipedia/commons/c/ce/Uncertainty_principle.svg

Jan 29, 2020 – Chinese Nurse Translation


Jin Hui – Chinese Hospital Worker

Feb 9, 2020 – Tectonic Plates

  1. NASA/Goddard Space Flight Center Scientific Visualization Studio
    http://svs.gsfc.nasa.gov/2953
  2. Subduction Zone
    https://commons.wikimedia.org/wiki/File:Subduction-en.svg
    https://upload.wikimedia.org/wikipedia/commons/c/ce/Subduction-en.svg
    KDS4444 [CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0)]
    Subduction-en.svg from Wikimedia Commons by K. D. Schroeder, CC-BY-SA 4.0
  3. US Geological Survey
    https://pubs.usgs.gov/imap/2800/
    https://vi.wikipedia.org/wiki/Tập_tin:Hawaii_hotspot_poster.jpg
    https://www.usgs.gov/faqs/are-usgs-reportspublications-copyrighted?qt-news_science_products=0#qt-news_science_products
  4. NOAA Mid-atlanticRift
    http://www.ngdc.noaa.gov/mgg/image/2minrelief.html
  5. San Andreas Fault
    https://commons.wikimedia.org/wiki/File:Aerial-SanAndreas-CarrizoPlain.jpg
    https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2009071510014875
  6. 2004 Indian Ocean Earthquake
    https://vi.wikipedia.org/wiki/Tập_tin:2004_Indian_Ocean_earthquake_-_affected_countries.png
    https://creativecommons.org/licenses/by-sa/3.0/deed.vi

Feb 16, 2020- O’Neill Cylinders


None

Feb 19, 2020 – Owls


Black Bird – Primal Drive by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100599
Artist: http://incompetech.com/

Feb 26, 2020 – Mosquitoes


Chee Zee Jungle – Primal Drive by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100684
Artist: http://incompetech.com/

Constance – The Descent by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100850
Artist: http://incompetech.com/

March 11, 2020 – Cats

  1. Sarcophagus of Prince Thutmose
    https://commons.wikimedia.org/wiki/File:Sarcophagus_of_Prince_Thutmose%27s_cat_by_Madam_Rafa%C3%A8le.jpg
    Larazoni / CC BY (https://creativecommons.org/licenses/by/2.0)
  2. Proailurus lemanensis skull
    https://upload.wikimedia.org/wikipedia/commons/4/49/Proailurus_lemanensis_skull.jpg
    Ghedoghedo / CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0)

March 25, 2020 – Aerodynamics

  1. Thanks to Cruithne9- Various Coanda effect diagrams:
    Cruithne9 / CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0)

https://en.m.wikipedia.org/wiki/File:Coanda_effect_1.jpghttps://commons.wikimedia.org/wiki/File:Coanda_effect_3.jpg

https://commons.wikimedia.org/wiki/File:Coanda_effect_4.jpghttps://commons.wikimedia.org/wiki/File:Slats_and_flaps.jpg

  1. Wind Tunnel App:
    original: algorizk.com/windtunnel

3. Google play store (free): https://play.google.com/store/apps/details?id=com.algorizk.windtunnel&hl=en_US

4. Google play store (paid):
https://play.google.com/store/apps/details?id=com.algorizk.windtunnel&hl=en_US

April 15, 2020 – Earthworms

  1. Earthworm head.svg
    KDS4444 / CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0)
    https://commons.wikimedia.org/wiki/File:Earthworm_head.svg
  2. NEW KGX.jpg
    OpenStax College / CC BY (https://creativecommons.org/licenses/by/3.0)
    https://commons.wikimedia.org/wiki/File:2320_Fig_23.20_NEW_KGX.jpg
  3. Esienia fetida + cocon.JPG
    Andreas th Andreas Thomsen / CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0)
    https://commons.wikimedia.org/wiki/File:Eisenia_fetida_%2B_cocon.JPG

April 22, 2020 – Solar System Formation


Public domain images: NASA/JPL

April 29, 2020- UFOs Confirmed


Public domain images: NAVAIR

May 10, 2020- Bats

  1. BrittPowitzKids -Jungle beats!
    https://www.brittpowitz.com
    https://www.youtube.com/channel/UCEfAuRQeoO-7XIcxK34nYWA
  2. Chee Zee Jungle, Constance The Descent, BLck Bird, by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
    Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100684
    Artist: http://incompetech.com/

Photos Flikr:

  1. Bat drinking, by CC 2.0:
    Photo courtesy of Bat Conservation International and Minden Pictures.
    https://flic.kr/p/2daSw1E

May 20, 2020 – Murder Hornets

  1. Image by Federico Massarelli:
    https://www.publicdomainpictures.net/en/view-image.php?image=328535&picture=wasp-on-is-cove

2.Image by Filippo Turetta
https://commons.wikimedia.org/wiki/File:Vespa_Mandarinia_Magnifica_-_Filippo_Turetta.jpg

  1. Image by Alpsdake
    https://commons.wikimedia.org/w/index.php?curid=21275572
    https://commons.wikimedia.org/wiki/File:Vespa_mandarinia_japonica_s4.JPG
  2. Images by Yasunori Koide
    https://en.m.wikipedia.org/wiki/File:Male_Vespa_mandarinia.DSC_1515.jpg

May 31, 2020 – Negativity Bias


None

June 4, 2020 – SpaceX Demo-2

  1. Live in-flight and on-site video broadcast
    NASA / NASA TV / SpaceX

Special Photo credits:

  1. Photo of Jeff Bezos 2018
    https://creativecommons.org/licenses/by/2.0/deed.en
    https://commons.wikimedia.org/wiki/File:Jeff_Bezos_at_Amazon_Spheres_Grand_Opening_in_Seattle_-2018(39074799225)_(cropped).jpg

July 2, 2020 – Tarsiers


1.https://commons.wikimedia.org/wiki/File:Tarsier_Sanctuary,Corella,_Bohol(2052878890).jpg
2. https://commons.wikimedia.org/wiki/File:TARSIER_(8622391931).jpg

3. https://commons.wikimedia.org/wiki/File:Flickr_-JennyHuang-Tarsier.jpg

4. https://vi.m.wikipedia.org/wiki/Tập_tin:Tarsius_sangirensis.jpg

5. https://vi.m.wikipedia.org/wiki/Tập_tin:Tarsius-syrichta.JPG

6. https://commons.wikimedia.org/wiki/File:Tarsier_skull.jpg

7. https://commons.wikimedia.org/wiki/File:Tapetum_lucidum_gato.jpg

8. https://commons.wikimedia.org/wiki/File:Cow_eye.jpg

9. https://commons.wikimedia.org/wiki/File:Tarsal_bones-_animation01.gif

July 9, 2020 – Biomicicry

  1. Samara Drone, University of Queensland
    http://robotics.itee.uq.edu.au/dokuwiki/samara
  2. Peregrine Falcon diving, Lassannn on imgur
    https://theaviationist.com/2013/03/19/b2-bird/
    https://imgur.com/t/lassannn/
  3. Gecko pad structure, Keller Autumn, AMerican Scientist 2006
    http://www.akronascent.com/tech-blog/2019/1/gecko-inspired
  4. Microview Gecko Tape
    https://en.wikipedia.org/wiki/File:Micro_view_of_Gecko_Tape.jpg
  5. Gecko foot
    https://commons.wikimedia.org/wiki/File:Rhacodactylus_ciliatus_foot.jpg
  6. Micro View Syntehtic Setae
    https://en.wikipedia.org/wiki/File:Micro_view_of_CNTs_synthetic_setae.jpg
  7. Beetle collecting water
    https://commons.wikimedia.org/wiki/File:عکس-اصلی-11.jpg
  8. Onymacris unguicularis
    https://commons.wikimedia.org/wiki/File:Onymacris_unguicularis.jpg
  9. The Ohio State University- Bhushan, Kumar, Guerra
    https://medicalxpress.com/news/2018-06-mosquitos-painless-microneedles.html

July 16, 2020 – Chameleons


https://commons.wikimedia.org/wiki/File:Melanophores_with_dispersed_or_aggregated_melanosomes.svg
https://ar.m.wikipedia.org/wiki/ملف:Chromatophores.jpg
https://commons.wikimedia.org/wiki/File:Blausen_0328_EarAnatomy.png
https://en.wikipedia.org/wiki/File:Brookesia_micra_on_a_match_head.jpg
https://vi.m.wikipedia.org/wiki/Tập_tin:Juvenile_Brookesia_micra_on_finger_tip.png

July 23, 2020 – Mars Hope Probe


https://spectra.mhi.com/space
https://www.mbrsc.ae/emirates-mars-mission
https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA01019
https://commons.wikimedia.org/wiki/File:Chemical_ID_with_nano-FTIR.png

August 13, 2020 – Dinosaur Extinction


https://commons.wikimedia.org/wiki/File:Mesosaurus_BW.jpg
https://www.nps.gov/articles/plesiosaur-bone-fossil.htm
https://commons.wikimedia.org/wiki/File:Plesiosaurus_3DB.jpg
https://commons.wikimedia.org/wiki/File:Plesiosaur_model.jpg
https://commons.wikimedia.org/wiki/File:Mesosaurus_JWArtwork.png
https://commons.wikimedia.org/wiki/File:Pterodactyl_(PSF).png
https://commons.wikimedia.org/wiki/File:Pterodactyl_fossil_reconstitution.jpg
https://commons.wikimedia.org/wiki/File:LA-Triceratops_mount-2.jpg
https://www.publicdomainpictures.net/pictures/300000/velka/triceratops-3d-drawing.jpg
https://commons.wikimedia.org/wiki/File:Deccan_Traps_volcano.jpg
https://vi.wikipedia.org/wiki/Tập_tin:Deccan_Traps_Matheran.jpg
https://commons.wikimedia.org/wiki/File:Iridium-2.jpg
https://commons.wikimedia.org/wiki/File:Pieces_of_pure_iridium,1_gram._Original_size–0.1–0.3_cm_each..jpg https://www.flickr.com/photos/jsjgeology/15692057568 https://commons.wikimedia.org/wiki/File:IridiumLayerKTBoundaryRatonNM.png https://commons.wikimedia.org/wiki/File:Late_Cretaceous_metatherian_locales-ZooKeys_465.jpg

https://vi.m.wikipedia.org/wiki/Tập_tin:Kansas_sea2DB.jpg https://commons.wikimedia.org/wiki/File:Ocher_fauna_DB.jpg https://commons.wikimedia.org/wiki/File:Diorama_of_a_Permian_forest_floor-Dimetrodon_2(44977912954).jpg
https://commons.wikimedia.org/wiki/File:Permian_amphibians.jpg
https://commons.wikimedia.org/wiki/File:Phylogenetic_tree_of_Theropods_respiratory_system_01.JPG
https://en.wikipedia.org/wiki/File:Morganucodon.jpg
https://commons.wikimedia.org/wiki/File:Mammaliaformes.png

August 20, 2020 – Praying Mantis


https://commons.wikimedia.org/wiki/File:Hummingbird_and_Praying_Mantis_(7857395916).jpg
https://commons.wikimedia.org/wiki/File:Archilochus_colubris_Illinois_(6140522491).jpg

September 21, 2020- Monarch Butterfly


https://commons.wikimedia.org/wiki/File:Helleborin.png
https://commons.wikimedia.org/wiki/File:Monarch_butterfly_US_migration.png

November 8, 2020 – King Crabs

  1. CC 4.0
    https://commons.wikimedia.org/wiki/File:Lithodidae_(MNHN-IU-2015-86).jpeg
  2. CC 3.0
    https://commons.wikimedia.org/wiki/File:Lithodes_maja_001.jpg
  3. CC 3.0
    https://commons.wikimedia.org/wiki/File:1904_Hemoglobin.jpg
  4. CC 4.0
    https://commons.wikimedia.org/wiki/File:Deoxyhemocyanin_full.png
    https://commons.wikimedia.org/wiki/File:Oxyhemocyanin_full.png

5.CC 4.0
https://commons.wikimedia.org/wiki/File:Christmas_island_red_crabs_-_female_with_eggs_chris_bray-2.jpg

  1. Podding
    https://www.researchgate.net/publication/237827516_Podding_of_juvenile_king_crabs_Lithodes_santolla_Molina_1782_Crustacea_in_association_with_holdfasts_of_Macrocystis_pyrifera_Linnaeus_C_Agardh_1980
    TY – JOUR
    AU – Cárdenas, César
    AU – Canete, Juan
    AU – Oyarzun, Sylvia
    AU – Mansilla, Andres
    PY – 2007/05/01
    SP –
    T1 – Podding of juvenile king crabs Lithodes santolla (Molina, 1782) (Crustacea) in association with holdfasts of Macrocystis pyrifera (Linnaeus) C. Agardh, 1980
    VL – 35
    DO – 10.4067/S0717-71782007000100010
    JO – Latin American Journal of Aquatic Research
    ER –
  2. CC 4.0
    https://museumsvictoria.com.au/article/melbournes-annual-congregation-of-giant-spider-crabs/
  3. Cricket Leg Regeneration
    https://phys.org/partners/okayama-university/
  4. Red King Crab Range
    https://www.researchgate.net/publication/226380427_The_Invasive_History_Impact_and_Management_of_the_Red_King_Crab_Paralithodes_camtschaticus_off_the_Coast_of_Norway
    TY – CHAP
    AU – Jørgensen, Lis
    AU – Nilssen, Einar
    PY – 2011/02/04
    SP – 521
    EP – 536
    SN – 978-94-007-0590-6
    T1 – The Invasive History, Impact and Management of the Red King Crab Paralithodes camtschaticus off the Coast of Norway
    DO – 10.1007/978-94-007-0591-3_18
    ER –
  5. Life Cycle
    https://www.researchgate.net/figure/Life-cycle-of-the-Blue-Swimmer-Crab-Source-adapted-from-Bilbay-2014_fig2_283506370
    TY – BOOK
    AU – Mcleay, Lachlan
    AU – Doubell, Mark
    AU – Roberts, Shane
    AU – Dixon, Cameron
    AU – Andreacchio, Lorenzo
    AU – James, Charles
    AU – Luick, John
    AU – Middleton, John
    PY – 2015/01/01
    SP –
    T1 – Prawn and crab harvest optimisation: a bio-physical management tool. South Australian Research and Development Institute (Aquatic Sciences). Final Report to the Fisheries Research and Development Corporation. 79pp.
    ER –

November 30, 2020 – Abiogenesis


https://commons.wikimedia.org/wiki/File:Etls-2019-0024c.01.png
https://commons.wikimedia.org/wiki/File:Simplified_tree.png
https://commons.wikimedia.org/wiki/File:Phylogenic_Tree.jpg

https://www.onezoom.org/

https://commons.wikimedia.org/wiki/File:Photosynthesis_en.svg

https://commons.wikimedia.org/wiki/File:Aerobic_mitochondria_process.png

https://commons.wikimedia.org/wiki/File:Phylogenetic_tree_of_Theropods_respiratory_system_01.JPG

https://commons.wikimedia.org/wiki/File:Miller-Urey_experiment-en.svg

https://commons.wikimedia.org/wiki/File:Francis_Crick.png

https://commons.wikimedia.org/wiki/File:Difference_DNA_RNA-EN.svg

https://commons.wikimedia.org/wiki/File:Etls-2019-0024c.01.png

https://commons.wikimedia.org/wiki/File:TCA_cycle.svg

https://commons.wikimedia.org/wiki/File:Figure_06_01_03.jpg

https://commons.wikimedia.org/wiki/File:Succinic_acid_production_with_zero_byproducts,_Glyoxylate_oxidative_route.png

https://commons.wikimedia.org/wiki/File:0302_Phospholipid_Bilayer.jpg

https://commons.wikimedia.org/wiki/File:The_lipid_and_lipid_bilayer.png

http://medcell.med.yale.edu/lectures/introduction_cell_membrane.php

Fossil JPG: Julien Alleon, GPL.
http://www.geochemicalperspectivesletters.org/article1817/

December 7, 2020 – Sloths


https://commons.wikimedia.org/wiki/File:Ground_sloth_skeleton.jpg
https://commons.wikimedia.org/wiki/File:Giant_ground_sloth_NCMNS.jpg
https://commons.wikimedia.org/wiki/File:Megatherium_americanum_Marcus_Burkhardt.jpg
https://commons.wikimedia.org/wiki/File:Megatherium_americanum_cropped.png
https://commons.wikimedia.org/wiki/File:Megatherium_Americanum.jpg
https://commons.wikimedia.org/wiki/File:Skeleton_of_a_Three-toed_Sloth.jpg
https://www.researchgate.net/figure/Schematic-representation-of-the-three-toed-sloth-stomach-B-variegatus-The_fig1_6829926
https://teampizzayo.weebly.com/digestive-system.html
https://commons.wikimedia.org/wiki/File:1414_Rods_and_Cones.jpg
https://commons.wikimedia.org/wiki/File:Thalassocnus_size.jpg
https://commons.wikimedia.org/wiki/File:Thalassocnus_natans.jpg

December 20, 2020 – Mantis Shrimp

https://commons.wikimedia.org/wiki/File:Mantis_Shrimp_parental_care.png

https://commons.wikimedia.org/wiki/File:Simple_Mechanics_of_the_Peacock_Mantis_Shrimp.jpg

https://commons.wikimedia.org/wiki/File:Mantis_Shrimp_(11355407746).jpg

https://media.australian.museum/media/dd/documents/1758_complete.a69e5e4.pdf

https://commons.wikimedia.org/wiki/File:Micromechanical_and_compositional_variability_in_the_stomatopod_dactyl_club.png

https://commons.wikimedia.org/wiki/File:Generalized_stomatopod_body_plan.png

https://commons.wikimedia.org/wiki/File:Cavitacion.jpg

https://commons.wikimedia.org/wiki/File:Vapor_Pressure_of_Water.png

https://commons.wikimedia.org/wiki/File:Phase-diag2.svg

https://commons.wikimedia.org/wiki/File:Figure_26_01_01.jpg

https://commons.wikimedia.org/wiki/File:Imgnotra%C3%A7at_arc_reflex_eng.svg

https://commons.wikimedia.org/wiki/File:Spectral_sensitivity_of_human_photoreceptors_and_best_RGB_colors.jpg

https://commons.wikimedia.org/wiki/File:Linear_visible_spectrum_ciecam02.png

https://commons.wikimedia.org/wiki/File:M%C3%BCnchen,St._Benedikt_vom_Pfarrhof(HDR_vs_NORMAL).jpg

https://commons.wikimedia.org/wiki/File:S-Bahnunterf%C3%BChrung_HDR_vs_NORMAL.jpg

https://commons.wikimedia.org/wiki/File:St.Magdalena(HDR_vs_NORMAL).jpg

https://commons.wikimedia.org/wiki/File:Circular_polarizer_as_anti-reflective_coating.png

https://en.wikipedia.org/wiki/File:Tumor_targeting.png

https://pixnio.com/science/microscopy-images/insects/chitin-polysaccharide-complex-carbohydrate-molecule-which-is-itself-a-polysaccharide

https://commons.wikimedia.org/wiki/File:Structure_of_Chitin.png

https://courses.lumenlearning.com/epcc-austincc-ap1-2/chapter/special-senses-vision/