Paragraph 2
A
described the jerboa. She said its
is 10 centimetres
. Its ears are up to 5cm long. They are up to 50 per cent as long as its body. Elephant's
are 17 per cent of its body
. The zoologist said jerboas
live in very hot
. Their large ears help them to keep
in the heat. Their ears are thin and have many tiny
vessels. Blood releases
from the body. This helps the animal cool down.