Your dog is wagging its tail. That must mean it’s happy, right? Maybe not. Scientists know less about what’s behind this behavior than you might think.
The reptiles’ horns could help or hinder during foraging, depending on how they hunt. This might be why horns evolved in some species and not others.
Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver.
A nose-picking aye-aye’s spindly middle digit probably pokes all the way into the back of the throat, CT scans show.
These spiky Australian mammals have a trick to moisten their noses, allowing them to survive hot temperatures that should kill them.
Animals with wings, big bodies or other protections from predators are more likely to evolve long lifespans.
The first published photo shoot of developing Pelmatops flies shows how their eyes rise on gangly stalks in the first hour of adulthood.
One gene drive to eliminate malaria seems to work in the lab. Now it’s time to ask local people if they want it released in the wild.
The genomes of salamanders are bloated with genetic “parasites.” That extra DNA slows down their lives and strands them in perpetual childhood.
