Both animals have also been known to share food with each other.
But the animals of Earth, past and present, were known.
Until the 1980s, only four animals of this species were known.
It was one of the largest animals known to have walked the earth.
It was not the track of any animal known on earth.
Despite the name fisher, the animal is not known to eat fish.
The blue whale is the largest animal ever known to have lived.
The only other animals known to have such cells are the great apes.
Nor, said the witnesses, could they have been any kind of animal known to Vermont.
This is the only animal known to do so.