Koalas are nocturnal animals they sleep during the day when the sun s rays are the strongest and are awake in the evening and at night when it s cooler. Hippos secrete a pinkish colored oil that helps keep their skin moist in the hot sun and acts like a sunscreen to protect their skin from sunburn. Pigs and Warthogs do not have sweat glands. They wallow in mud to keep cool and protect their skin from the sun s harmful rays. Meerkats have black rings around their eyes to absorb the sun s rays, protecting their eyes from sun damage.
Chimpanzees avoid the peak hours of the sun.
Most of their activity is in the early morning and late afternoon hours. Tortoises have a shell that protects them from many dangers in the environment, including predators, rain, and the sun s strong rays. Rabbits are nocturnal animals. This means that most of their activity is in the evening or night and they rest during the day when the sun s rays are the strongest. Camels have bumps over their eyes that act as built-in sun visors to help keep out bright sunlight.