An octopus has three hearts—and two of them stop beating when it swims
An octopus has three hearts—and two of them stop beating when it swims. This makes swimming exhausting which may be why octopuses prefer to crawl.
Learn more at https://www.newscientist.com/question/many-hearts-octopus/
Dung beetles navigate by using the stars of the Milky Way
Dung beetles navigate by using the stars of the Milky Way as a guide. Dung beetles will roll poop to create their homes for their offspring and to hide from predators. Rolling and pushing dung balls allows them to quickly travel large distances while gathering food or searching for mates.
Learn more at https://www.science.org/content/article/dung-beetles-navigate-milky-way
Hummingbirds are the only bird species that can fly backwards
Hummingbirds are the only bird species that can fly backwards. They can also fly upside down.
Learn more at https://hummingbirds.vetmed.ucdavis.edu/information/facts
Koalas are the sleepiest animals in the world—sleeping up to 22 hours a day
Koalas are the sleepiest animals in the world—sleeping up to 22 hours a day. Koalas require a lot of sleep because their food gives them very little energy. And eucalyptus requires a lot of energy to digest.
Learn more at https://friendsofthekoala.org/why-do-koalas-sleep-so-much/
Venus flytraps have to grow their flowers high above their traps so that they don’t accidentally kill their pollinators
Venus flytraps have to grow their flowers high above their traps so they don’t accidentally kill their pollinators.
Learn more at https://blog.education.nationalgeographic.org/2018/02/08/venus-flytraps-dont-trap-insects-that-pollinate-them/
Reindeer are the only deer species in which both sexes grow antlers
Reindeer are the only deer species in which both sexes grow antlers.
Learn more at https://www.fda.gov/animal-veterinary/animal-health-literacy/fun-facts-about-reindeer-and-caribou
Buffalo mozzarella cheese is made from the milk of water buffalo
Buffalo mozzarella cheese is made from the milk of water buffalo
Learn more at https://www.wisconsincheese.com/about-cheese/buffalo-mozzarella

