Animals do many amazing things. Some solve problems. Some use tools. Some remember things for a long time. These animals think and learn in ways that surprise people. Here are five of the smartest animals in nature.

1. Chimpanzees

Chimpanzees use sticks to find food. They crack nuts with stones. They watch others and copy them. They work together to hunt. They remember faces for many years.

2. Dolphins

Dolphins talk with clicks and whistles. They call each other by names. They play games. They work together to catch fish. They learn tricks and understand human signs.

3. Elephants

Elephants remember paths and water sources. They know family members even after years. They use their trunks to pick up objects and help others. They feel joy and sadness. They show kindness to their friends.

4. Crows

Crows use sticks to grab food. They drop nuts on roads so cars can break them. They remember human faces for a long time. They plan and solve problems. They learn by watching others.

5. Pigs

Pigs solve puzzles quickly. They recognize themselves in mirrors. They learn commands and tricks. They remember places and objects. They play and show emotions like happiness and sadness.

Animals show intelligence in many ways. Some remember well. Some solve problems. Some work together. They learn from their world just like people do.