Stories about: evolution  

Rather than by small accumulation of differences

This has come as no surprise for researchers

The process is being observed by scientists

They are a global phenomenon

The study has been a first

The process is similar to biological evolution

There is no other way of sending blood to the head

The situation is growing increasingly desperate

The conclusion belongs to a new study

The conclusion belongs to a new scientific study

Scientists wonder how we will end up

There are clear indicators to this conclusion

Chimpanzees lack it

The instruments helped us tremendously

This may have been the key to their success

A single one may be responsible for this hair type

They attempt to free ensnared comrades