Giraffe are already extinct in at least seven
countries in Africa.
Just like
human
fingerprints,
no two
giraffe have
the same
coat
pattern.
Giraffe feet are the size of a dinner place with
a diameter of 30cm.
Giraffe tongues are bluish-purple and
between 45 - 50cm long.
Both male and female giraffe have ‘horns’
already at birth. These ossicones lie flat and
are not attached to the skull to avoid injury at
birth. They only fuse with the skull later in life.
The giraffe is the tallest mammal in the world.
Even newborn giraffe are taller than most
humans.
Female giraffe give birth standing up. Their
young fall about 2m to the ground and can
stand up within an hour of birth.
About 50% of all giraffe calves do not survive
their first year.
A giraffe’s neck is too short to reach the
ground. As a result, it has to awkwardly
spread its front legs or kneel to reach the
ground for a drink of water.
Giraffe only need to drink once every few
days. Most of their water comes from all the
plants they eat.
To protect the giraffe’s brain from sudden
changes in blood pressure when it lowers its
head to drink, it has valves to stop the back-
flow of blood and elastic-walled vessels that
dilate and constrict to manage flow. NASA
has done research on the blood vessels in
giraffe legs to get inspiration for human space
suits.
A giraffe heart weighs approx. 11kg and is
the biggest of any land mammal. It is used to
pump 60 litres of blood around its body every
minute at a blood pressure twice that of an
average human.