1. WHALE AND DOLPHIN FACTS

2. LONGEST MIGRATION
The gray whales’ annual 10,000-12,000-mile migration between Mexico’s Baja calving lagoons and the cold arctic seas is the longest known migration for any mammal.

3. LONGEST MIGRATION

4. LONGEST MIGRATION

5. LARGEST WHALE

6. LARGEST WHALE
Blue whales grow to be about 80 feet long on average, weighing about 120 tons.

7. LARGEST WHALE

8. LARGEST WHALE
A Blue Whale's tongue weighs around 3 tons and when fully expanded its mouth is large enough to hold up to 100 tons of food and water.

9. LARGEST WHALE
Despite the size of its mouth, the dimensions of its throat are such that a Blue Whale cannot swallow an object wider than a beach ball.

10. A Blue Whale's aorta is about 9 in in diameter
LARGEST WHALE
A Blue Whale's aorta is about 9 in in diameter

11. LARGEST WHALE
Blue whales are the loudest animals on Earth! Their call reaches levels up to 188 decibels.

12. LARGEST WHALE
The blue whale is louder than a jet, which reaches only 140 decibels! Human shouting is only 70 decibels; sounds over decibels are painful to human ears.

13. The Narwhal is a rarely seen Arctic whale
LONGEST TOOTH
The Narwhal is a rarely seen Arctic whale

14. LONGEST TOOTH
All narwhals have two teeth in their upper jaw. After the first year of a male narwhal's life, its left tooth grows outward, spirally. This long, single tooth projects from its upper jaw and can grow to be 7-10 feet long

15. LONGEST TOOTH

16. How do whales and dolphins sleep?
Because of their undersea environment, whales and dolphins must be conscious breathers. This presents a problem, since mammalian brains need to enter an unconscious state from time to time in order to function correctly

17. How do whales and dolphins sleep?
The solution for whales and dolphins is to let one half of the brain sleep at a time. In this way, the animal is never completely unconscious, but it still gets the rest it needs.