CC BY-NC-ND 2.0 Jasper Nance / https://flic.kr/p/2JShUR
Sleep is one of biology's biggest mysteries.
Every species with a nervous system has some form of resting period, and so one theory for why animals sleep is that it…
Brown treesnake on a pole.
Scientists have discovered a new method that some snakes use to climb trees.
The previously unknown mode of locomotion was observed in the brown treesnake, which forms a loop around a…