By Stella Alexander on May 10, 2018
You really OTTER take this quiz! In the oceans, you'd find tons of different marine mammals living within the ecosystem to survive. They can range from the crowd favorite, dolphins, to manatees and seals. While these animals have tons of characteristics that group them together, there's even more that set them apart. How well do you know marine mammals?
If you travel back to your days of science, you probably learned about the different classes of animal. There are invertebrates, which are animals without a backbone. Amphibians, animals which start out as larvae, grow into animals like frogs and newts. Birds are hatched from eggs and have feathers and toothless beaks. Fish, which commonly have scales and lay eggs, use gills to breathe under water while a small portion use air. Reptiles, like snakes and crocodiles, are characterized by dry scales and laying soft-shelled eggs. Last, but not least, the last animal group is mammals that are normally grouped by mammary glands, hair/fur, and more.
Within the group of mammals, the types of animals cover a wide range. While you'd have humans on the list of land mammals, you'd also find tigers and elephants. Traveling to the oceans, you'd find animals such as sea lions, walruses and blue whales. From some of the smallest to the biggest animals on earth, do you know enough about marine mammals to pass this quiz? Let's find out!