Ancient DNA reveals new branches of the Denisovan family tree

It's widely accepted that anatomically modern humans interbred with their close relatives, the Neanderthals and Denisovans, as they dispersed out of Africa. But a study examining DNA fragments passed down from these ancient ...

Biologists develop new method of cloning

DNA, which contains the genetic information of an organism, consists of long chains of nucleotides. In order to study the functions based on the sequence of these building blocks, DNA molecules must be inserted in carrier ...

Crocodiles and birds were 'prehistoric bedfellows'

Crocodiles and birds may not seem the most obvious bedfellows, but scientists now say a prehistoric fossil find in Romania suggests that at one time the two species may have shared nests.

The 210-million-year-old Smok was crushing bones like a hyena

Coprolites, or fossilized droppings, of the dinosaur-like archosaur Smok wawelski contain lots of chewed-up bone fragments. This led researchers at Uppsala University to conclude that this top predator was exploiting bones ...

Five maps that reveal the world's remaining wilderness

There aren't many corners of the world left untouched by humanity. Recent research has highlighted that just 23% of the planet's land surface (excluding Antarctica) and 13% of the ocean can now be classified as wilderness, ...

Let's talk about the elephant that wasn't in the room

Encounters with elephants are always memorable. My first meeting with a bull African elephant – face to face across a disconcertingly small and shallow waterhole during a walking safari in Zimbabwe – left me shaking so ...

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