Orca
Fun Fact
It’s hard to see from the water’s surface, but adult orcas are, on average, about as long as a small school bus (19 to 26 feet long) and they can weigh up to six tons.
Dolphin
Fun Fact
When they are asleep, one part of their brain remains alert and awake. This keeps them safe from potential predators, and enables them to breathe while sleeping.
Blue Whale
Fun Fact
The blue whale's heart is huge. It's the largest heart in the animal kingdom, weighing about 400 pounds (180 kg) and roughly the size of a bumper car.
