Context: Placental mammals are a group of animals with similar traits. The following traits can be used to identify placental mammals:
They give birth to live offspring.
They have fur or hair. Observe the animals and read the descriptions.
Select the one animal that has all of the placental mammal traits listed above.
A. Dwarf crocodiles are the smallest crocodiles alive today. They grow to be about five feet long and have scaly, waterproof skin. Dwarf crocodiles live in Central Africa and hatch from eggs with shells.
B. North American beavers have fur and live near lakes and rivers. They use sticks and mud to build homes, or lodges, for themselves. Female beavers give birth to live offspring inside the lodges.
From the given choices, select the correct answer and reply with the letter of the chosen option.
Answer: B