The see-through frog.
Lions in the sea? Yes.
Researchers have found incredible weapons made of rock crystal dating back to at least 3000 BCE.
The larval form giant bump-head sunfish had remained a mystery to ocean scientists - until now.
Oceans are not particularly earthly.
The mystery of the giant sphere.
This seems to be true for humans, too.
The truth can be painful, at least for some people.
This is the first time that singing mountain gorillas have been caught on camera.