
Giraffe Fact #2: Giraffes usually sleep standing up.

Giraffe Fact #3: Giraffes are the tallest land mammals - they can grow up to 18 feet in height.

Giraffe Fact #4: Giraffes have a heart that weighs two stone, and high blood pressure to stop them fainting when they raise their heads from ground level.

Giraffe Fact #5: Historically, giraffes were thought to be mute. Recent research has shown that they bleat, grunt, snort, and communicate at an infrasound level.

Giraffe facts from here.






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