Big brains helped clever mammals survive the last Ice Age that wiped out megafauna
Mastodons and saber-toothed tigers may have lacked the brain power to adapt to the end of the ice age.
Mastodons and saber-toothed tigers may have lacked the brain power to adapt to the end of the ice age.
This might solve a long-standing puzzle about plant domestication.
The apple is not your typical fruiting tree.
In between rising temperatures and human hunters, mammoths and sabretooth tigers stood no chance.