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1990-07-25
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JERBOA
Looking like a tiny kangaroo, the
sand-colored jerboa springs across
bare ground. Using its strong hind
legs and feet to push off, this
%F,10,h\rodent%rodent can leap as far as 10 feet
(305 cm). Such long-distance jumps
are amazing for an animal that may
measure only 6 inches (15 cm) long.
At night, jerboas look for plants
and seeds. Some jerboas also feed on
beetles and other insects.
With their short front legs and
their strong teeth, jerboas dig
%F,10,g\burrow%burrows. The burrows help keep the
animals safe from enemies such as
owls and foxes. From inside their
burrows, jerboas sometimes block the
entrances with sand or soil. Using
their snouts, they shove loose dirt
into the openings.
Some jerboas curl up in their
burrows during the winter. There
they %F,10,g\hibernat%hibernate (say HYE-bur-nate).
Their heart rates drop, and their
breathing slows down. Some jerboas
escape the heat of summer by
sleeping this way. Summer sleep is
called %F,10,g\aestivat%aestivation (say
es-tuh-VAY-shun).
Females give birth to two or three
%F,10,g\litter%litters a year. Each litter contains
two to six young.