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A frog breathes with the help of lungs when it is on land. It breathes through its skin when it is in water. It has webbed feet to help it swim in water.ARBOREAL ANIMALS Animals that live mostly on trees are called arboreal animals. Monkeys, lizards and chameleons are some arboreal animals.Chameleons change their colour to blend with their surroundings.Did you know?Bats are not birds, they are mammals.Did you know?monkey lizard chameleonTheir bodies are suited to live on trees.Monkeys have long and strong limbs with sharp claws which help them climb trees. They also have long tails that help them hold onto branches.AERIAL ANIMALS Animals that fly and spend a lot of their time in the air are called aerial animals.What are the features that help birds to fly?They have wings to help them fly. The boat-shaped body helps them to cut through the air easily. The bones are hollow, so their body is light. The body of a bird is covered with feathers. The feathers also help them to fly.Most birds except the flightless birds are aerial animals. Bats and some insects also belong to this group. bat crowmosquitobutterflyparrotsparrowhousefly eagleArrow-Puffin-4_Semester-1 Science 251