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The body shape is similar to that of the giraffe, except okapis have much shorter necks. Like the giraffe, the okapi has long legs and a robust body. Both species have very long (about 35-cm),[7] flexible tongues used to strip leaves and buds from trees.

The okapi's tongue is also long enough for the animal to wash its eyelids and clean its ears (inside and out). This sticky tongue is pointed and bluish-grey in colour like that of the giraffe. Male okapis have short, skin-covered horns calledossicones. Their large ears help them detect their predator, theleopard.
Okapis are 1.9 to 2.5 m (6.2 to 8.2 ft) long (from the head to the base of the tail) and stand 1.5 to 2.0 m (4.9 to 6.6 ft) high at the shoulder. They have 30- to 42-cm-long tails. Their weight ranges from 200 to 350 kg (440 to 770 lb).[8]

wikipedia