Fun facts about animals

All fun facts about animals

• Octopuses have three hearts and blue blood.Source: Smithsonian Ocean
• A group of flamingos is called a flamboyance.Source: Oxford English Dictionary usage
• Wombats produce cube-shaped poop, thanks to the way their intestines stretch.Source: Soft Matter, 2021
• Sea otters often hold hands while they sleep so they don't drift apart.Source: Monterey Bay Aquarium
• A shrimp's heart is in its head.Source: Marine biology texts
• Butterflies taste with sensors on their feet.Source: Natural History Museum, London
• Giraffes have seven neck bones, the same number as humans. Each one is just much longer.Source: Smithsonian's National Zoo
• A blue whale's heart weighs about 180 kg (400 lb).Source: Stanford, 2019 heart-rate study
• Penguins have knees. They are hidden inside their feathers.Source: Natural History Museum, London
• Starfish have no brain and no blood.Source: NOAA Ocean Service
• Crows can recognise individual human faces and remember people who treated them badly for years.Source: University of Washington, 2010
• Axolotls can regrow lost legs, parts of their heart and even parts of their brain.Source: Nature, 2018
• Owls can't move their eyes, so they turn their heads, up to about 270 degrees.Source: Johns Hopkins Medicine, 2013
• Polar bears have black skin under their fur, and the fur itself is transparent, not white.Source: Polar Bears International
• Honeybees tell each other where the flowers are with a "waggle dance".Source: Karl von Frisch, Nobel Prize 1973
• Koalas have fingerprints so close to ours that they are hard to tell apart under a microscope.Source: Nature, 1996
• Hummingbirds can fly backwards.Source: Smithsonian's National Zoo
• Cats can't taste sweetness. They lack the gene for the sweet taste receptor.Source: PLOS Genetics, 2005
• A snail has thousands of tiny teeth on its tongue.Source: Natural History Museum, London
• Elephants can "hear" through their feet, picking up rumbles in the ground from far away.Source: Stanford, Caitlin O'Connell-Rodwell