Human or hybrid? The big debate over what a species really is
23 January 2019
Humans once mated with Neanderthals so are we hybrids? How we see ourselves and the rest of nature is changing, raising the question of whether species even exist
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Premium
Is the idea of species now more trouble than it is worth?
23 January 2019
We use the concept of "species" to try to make sense of the world, but difficulties in defining it can undermine our own identity and alter how we value nature
Exclusive: 600-million-year old blobs are earliest animals ever found
23 January 2019
Fossils in China suggest that that some of the first animals in existence may have been carnivorous comb jellies similar to some species that still exist today
Robot version of our distant ancestor hints at how we learned to walk
16 January 2019
A robotic version of a four-legged animal that lived 290 million years ago suggests it had an efficient walking style despite spending some of its life in water
Long penises help hermit crabs avoid being robbed during sex
16 January 2019
Some male hermit crabs have unusually long penises. This could be so that they can protect their homes whilst having sex
How hagfish can make enough slime to clog a shark's jaws in seconds
16 January 2019
Hagfish use slime to clog up sharks’ jaws in milliseconds, and it’s the water drag generated when the shark inhales that helps the slime form so quickly
