Animals life cycles

Chapter one

Life cycles
There are millions of different species of animal in the world. Some animals , like the blue whole are very big. Others are so small that we almost can't see them. These animals all have very different life cycles
    Staying Alive

All animals need to find food to stay alive. Some animals are carnivores. This means that they eat other animals. Herbivores eat plants, and omnivores eat plants and animals.

There are many dangers for animals. They have to keep safe from predators - animals that hunt and eat other animals. People hunt birds and other animals. People also cut down trees and build houses and roads on land. When they do this, animals lose their homes and their food. Many animals also become sick or die because of pollution of the land, oceans, rivers, and air. Life is very dangerous for animals. Many animals die before they are old enough to produce young.

Different animals live for different amounts of time. A Galapagos tortoise can live for 150 years, but an adult mayfly usually lives for just a few hours.