Fish
Bluefin tuna
The bluefin tuna is a fish.
Photo by Unknown author Unknown author. Public domain · Source
Unusual but true
A bluefin can keep its muscles warmer than the water. Most fish cannot.
Where it lives
Bluefin tuna live in the open ocean.
What it eats
A tuna hunts smaller fish.
How big
Longer than a child is tall.
Places: Ocean