Classroom lesson · Wildlife · 🇬🇳 Guinea

Pygmy Hippopotamus

A shy, miniature hippo that hides in forest streams

A small pygmy hippopotamus standing on a riverbank surrounded by green vegetation

Photo · Wikimedia Commons

What is it?

The pygmy hippopotamus is a small, secretive relative of the common hippopotamus. While a common hippo can weigh 3,000 kg, a pygmy hippo weighs only about 275 kg — roughly the size of a large pig. Pygmy hippos live in the forests and swamps of West Africa, including Guinea, where they hide in streams and rivers during the day.

Tell me more

Unlike common hippos, which live in large groups and spend most of their time in open rivers and lakes, pygmy hippos are mostly solitary and love dense forest. They are very shy and hard to spot. Most people in Guinea have never seen one in the wild, even though the animals live in their country.

Pygmy hippos have a special adaptation for living in water: their skin produces an oily, pinkish liquid that acts like a natural sunscreen and keeps their skin moist. This means they do not need to stay underwater during the hottest part of the day the way common hippos do.

At night, pygmy hippos come out to feed on leaves, roots, fruit and grasses on the forest floor. Their small size helps them move quietly through thick vegetation. Their feet have slight webbing between the toes to help them walk on slippery river mud.

Pygmy hippos are classified as endangered, which means there are not very many of them left. Guinea has some of the most important forest habitat for this species in West Africa, making it a very special place for these rare animals.

In the classroom

Walk your class through this in 15 minutes.

Talk together

Discussion prompts

  1. 01The pygmy hippo makes its own natural sunscreen. What other clever ways do animals protect themselves from the sun, cold or rain?
  2. 02Why might being small and shy help the pygmy hippo survive in a dense forest?
  3. 03If an animal is very rare, why is it especially important to protect the place where it lives?
Try this

Classroom activity

Create a 'comparison card' for the two types of hippo. Draw the common hippo on one side and the pygmy hippo on the other. Write three ways they are the same and three ways they are different — think about size, where they live, whether they live alone or in groups, and when they are active.