Why Do Some Animals Get Gigantic?

published 2 years ago by Neptune Studios

Get your first KiwiCo box free by going to   Occasionally, internal or external factors change, allowing certain animals to become giant versions of themselves.   Thanks also to our supporters on ___________________________________________   To learn more, start your googling with these keywords: Spiracles: External respiratory openings on insects Carboniferous Period: The time period from 359-299 million years ago when the Earth’s oxygen levels increased rapidly. Square-Cube Law: A mathematical principle that describes the relationship between area and volume. Buoyancy: An upward force exerted by a fluid that opposes the weight of an immersed object. Phytoplankton: Microscopic plants eaten by krill and other zooplankton. Baleen: A filter-feeding system inside the mouth of some whales.   _________________________________________   Subscribe to MinuteEarth on YouTube: Support us on Patreon: And visit our website:   Say hello on Facebook: And Twitter:   And download our videos on itunes:   ___________________________________________   Credits (and Twitter handles): Script Writer: David Goldenberg (@dgoldenberg) Script Editor: Emily Elert (@eelert) Video Illustrator: Ever Salazar (@eversalazar) Video Director: Kate Yoshida (@KateYoshida) Video Narrator: Kate Yoshida (@KateYoshida) With Contributions From: Henry Reich, Alex Reich, Peter Reich Music by: Nathaniel Schroeder: ___________________________________________   References: Kaiser, A., et al. (2007). Increase in tracheal investment with beetle size supports hypothesis of oxygen limitation on insect gigantism. 13198-13203. PNAS. Retrieved from:   Sander, P. Christian, et al. (2011). Biology of the sauropod dinosaurs:the evolution of gigantism. Biological Reviews. 86(1): 117–155. Retrieved from:   Taylor, M and Weder, M. (2013). Why sauropods had long necks; and why giraffes have short necks. PeerJ 1:e36. Retrieved from: .   Verberk, W. and Bilton, D. (2011). Can Oxygen Set Thermal Limits in an Insect and Drive Gigantism? PLOS One. 6(7): e22610. Retrieved from:   Slater, G., Goldbogen, J., Pyenson, N. (2017). Independent evolution of baleen whale gigantism linked to Plio-Pleistocene ocean dynamics. Proceedings of the Royal Society B. 284: 20170546. Retrieved from: .

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