This document contains various facts about animal behaviors and physical attributes. It notes that only female mosquitoes bite, owls have eye tubes instead of eyeballs, and polar bears have black skin. Additionally, it provides details on spider silk strength compared to steel, sea otters holding hands when sleeping, harvest mice sleeping in flowers, bees occasionally napping on flowers after drinking nectar, toucans curling into balls to sleep, and kiwi birds hunting by smell due to blindness. Further facts include snakes smelling with their tongues, horses lacking teeth in the middle of their mouths, crocodiles having tongues firmly attached to their mouths, cockroaches surviving a week without heads, and lizards' ability to detach their