Marine Mammals

4. A sirenian found in the northern hemisphere
6. Group that includes seals, sea lions, and walruses.
7. Arctic whale with a long, spiraled tusk, often referred to as the "unicorn of the sea."
10. A thick layer of fat under the skin of marine mammals, used for insulation.
11. Playful marine mammal known for using tools to open shellfish.
12. Also known as a killer whale, it’s a black-and-white predator of the sea.
13. A large, noisy pinniped known for its external ears and ability to "walk" on land using its flippers.

1. Seasonal movement of animals from one region to another, often for feeding or breeding.
2. Group that includes whales, dolphins, and porpoises.
3. Filter-feeding system inside the mouths of some whales.
5. The ability used by dolphins and bats to locate objects using reflected sound.
6. Arctic animal that relies on sea ice to hunt seals.
8. A sirenian found in the southern hemisphere.
9. The rounded forehead of toothed whales used to focus echolocation signals.
11. Marine mammal with flippers, known for its smooth swimming and playful nature.