#FossilFriday: Ingenious camouflage found in ancient amber-preserved insects

While many species are known to have evolved specialised colouration to better blend into their environmental backgrounds, there is another important form of camouflage: incorporate your environment into your appearance! This can be seen across the animal kingdom, including in insects and their larvae, sea urchins, and snails. Now, researchers have found some of the…

Sloths’ mysterious teeth decoded

Like most mammals, we humans have a variety of tooth types for different purposes: incisors, for gripping, canines for ripping and tearing, and molars (also pre-molars) for grinding and chewing. But one group, known as the¬†Xenarthra (a particularly excellent name meaning “strange joints”), have very simple dentition, with similar, unrooted teeth which lack enamel and…