Whales are divided into two groups based on how they catch food: toothed whales must chase and catch individual pieces of food using teeth suited to their needs, while baleen whales strain plankton and krill from water using baleen plates made of keratin like fingernails. Key differences between the groups include toothed whales having a single blowhole and baleen whales having a double blowhole, and examples of whales in each group are given such as killer whales for toothed whales and humpback whales for baleen whales.

1. Whales Toothed and Baleen

2. A Whale is not a Fish Whales breathe with lungs Young babies are born live It swims by moving the tail up and down Fish have gills that take oxygen from the water The young hatch from eggs It swims by moving its tail from side to side

3. Whales are divided into groups by the way they catch their food. The two groups are: Toothed Whales They must chase and catch their food They catch one piece at a time Each animal has different teeth to fit different needs Baleen Whales The baleen whales strain food out of the water. Plankton is the food most often eaten thousands of pounds in a day. The baleen is made of material like your finger nails.

4. Baleen

5. Plankton Krill

6. Double Blow holes

7. Gray Whale

8. Blue Whale

10. Humpback Whale

13. Fin Whale

15. Toothed Whales

16. Single Blow hole

17. Baluga Whales

19. Narwhal

21. Killer Whales

24. Sperm Whale

27. Right Whale

29. Pilot Whale