Most species at greatest risk from climate change are not currently conservation priorities, according to an International Union for Conservation of Nature (IUCN) study that has introduced a pioneering method to assess the vulnerability of species to climate change.
With its bright yellow mane, you'd think this monkey would be hard to miss. But in fact it's a species new to science - and only the second new species of African monkey to be discovered in the last 28 years.
You've probably never seen Tarzan’s chameleon, the Seychelles sheath-tailed bat or the pygmy three-toed sloth - and the chances are you never will.
Many plant and animal species around the world are shrinking, thanks to climate change, National University of Singapore researchers say.
There are 8.7 million species on Earth, according to the latest estimate, claimed to be far more precise than any before.
It's not easy getting attention in the cut-throat world of fungal systematics. And if your latest discovery is hidden away in the Lambir Hills of Sarawak, it must be harder still.
Two strains of the mosquito responsible for most malaria transmission in Africa are evolving into different species, meaning that techniques to control them may work on one type but not the other.
One of the biggest problems in cataloguing species is being able to tell whether a specimen is actually new or not. This week, for example, a sea eagle that had been believed to belong to a new species was discovered to be simply a variant on a known type.