Final answer:
Two types of marine mammals are seals and whales. Seals are carnivores that feed on fish, squid, and other marine organisms, while whales are divided into toothed whales and baleen whales, with different feeding strategies. Some seal and whale populations are currently in decline.
Step-by-step explanation:
Two types of marine mammals are seals and whales.
Seals
- Seals are marine mammals that belong to the order Carnivora. They have adapted to life in the water and have streamlined bodies, flippers for swimming, and a layer of blubber for insulation. Seals are carnivores and feed on fish, squid, and other marine organisms. Some seal populations are currently in decline due to various factors such as habitat loss, pollution, and overfishing.
Whales
- Whales are marine mammals that belong to the order Cetacea. They are the largest animals on Earth and are divided into two main groups: toothed whales and baleen whales. Toothed whales, such as dolphins and orcas, have teeth and primarily feed on fish, squid, and marine mammals. Baleen whales, such as blue whales, feed by filtering tiny shrimp-like animals called krill through baleen plates in their mouths. Some whale populations are also in decline due to factors like whaling, climate change, and pollution.