Mammalian orders

1. the most familiar primates with tails
3. active during the day
7. system, found in bats and dolphins, of producing sounds and listening for the echoes to detect objects
8. primates without a tail
9. enlarged incisor of an elephant
11. any whale that has teeth instead of baleen
15. tail designed for grasping objects
16. the worlds largest animal
17. fatty organ in a dolphins head through which sounds produced for echolocation are sent out
18. insect eating
19. black and white patterned whale that hunts seals and penguins

2. the largest living marsupial
4. any whale whose mouth has rows of comblike baleen plates that are used to filter small prey out of the water
5. mammal that gives birth to immature young, which are nourished within a pouch
6. active at night
10. the only marsupial outside Australia
12. aquatic mammals called sea cows such as a manatees
13. pouch in which the young of a marsupial are nourished by the mothers milk
14. an unusual kind of primate that live only in Madagascar
16. flying mammals of order Chiroptera