African animals

The three recognized extant species of zebra are Grevy's zebra, the mountain zebra, and the plains zebra. 'Savanna's zebra' is not a scientifically recognized distinct species of zebra.

Female giraffes typically reach sexual maturity and are able to become pregnant at around 4 to 5 years of age. Therefore, 5 years old is the correct option among the choices provided.

In Swahili, the word for monkey (specifically used for vervet monkeys) is 'tumbili'. The other options are either unrelated words or non-existent terms.

Hippopotamus milk is bright pink. This unique color occurs because hippos secrete reddish and orange acids (hipposudoric and norhipposudoric acid) that act as sunscreen and moisturizer, which can mix with their white milk.

The African bush elephant (Loxodonta africana) is indeed the largest living terrestrial animal and the largest of the elephant species, growing significantly larger than the Asian elephant and the African forest elephant.

There are about 91 species of antelope in the world, and the vast majority of them (around 72 species) are native to Africa. Thus, 'Nearly 90' is the most accurate choice for the total number of species.

The term 'Big Five' refers to the five African animals that were historically considered the most difficult and dangerous to hunt on foot. These are the lion, leopard, rhinoceros, elephant, and Cape buffalo.

Lions are highly inactive animals and can spend up to 20 hours a day sleeping or resting to conserve energy for hunting, which usually happens during the cooler night hours.