1. Marine Vertebrates: Cetaceans
The Marine Biome
Marine Vertebrates:
Cetaceans

3. Cetaceans
Whales
Dolphins
Porpoises

4. Cetaceans Largest group of marine mammals Have an elongated skull
Nostrils on top of skull (blowhole)
Very few hairs
A horizontal tail fin (fluke) used for propulsion

6. Cetaceans Echolocation: Communicate with each other
Determine distances
Warn others about danger

7. Cetaceans
They release tiny bubbles through their blowholes and make clicking sounds.
The Melon (fatty structure on the top of the head) focuses and directs the sound waves.

10. Cetaceans
Whale Song
Sperm Whales Echolocation

11. Cetaceans Breaching: Purpose:
When whales leap in the air and loudly crash on the surface of the water.
Purpose:
Warning signal
A way to get rid of external parasites
A fun activity

12. 12

13. Cetaceans Breaching Orcas Blue Whales and Breaching Humpbacks

14. Cetaceans Divided into two groups: Toothed whales
Toothless whales (Baleen Whales)

15. Toothed Whales About 80 different species.
The largest is the Sperm Whale.
Made famous by the novel “Moby Dick”.

16. Toothed Whales Teeth are adapted for a diet of squid and fish.
They are used to catch and hold prey, but not to chew it.

17. Examples
Bottlenose Dolphin

18. Examples
Beaked Whale

19. Examples
Sperm Whale

20. Examples
Beluga
The Vancouver Aquarium

21. Examples
Narwhal

22. Examples
Orca Whale (Killer Whale)

23. Baleen Whales The largest animals to ever have lived on the planet
10 species
The Blue Whale is the largest

24. Baleen Whales
Have a row of flexible, fibrous plates that hang from the upper jaw
Used to filter out plankton and tiny organisms from the water

25. Examples
Gray Whale

26. Examples
Humpback Whale

27. Examples
Minke Whale

28. Examples
Blue Whale