Elephants
are noted for their large size, tusks and long trunk. Members
of the elephant family were once highly successful, and during
their peak they spread to all parts of the globe except Australia,
New Zealand and Antarctica. The characteristic form of the skull,
jaws, teeth, tusks, ears and digestive system of elephants are
all part of the adaptive complex associated with the evolution
of large body size. The skull, jaws, teeth, tusks, ears and
digestive system of elephants are all part of the adaptive complex
associated with the evolution of large body size. The skull,
jaws, and teeth form a specialized system for crushing course
plant material. The skull is disproportionately large compared
with the size of the brain and has evolved to support the long
muscular trunk and heavy dentation. The skull, is however, relatively
light due to the presence in the upper cranium of interlinked
air cells and cavities.
There
are two species of elephants in two genera. The African Bush
Elephant (Loxodonta africana) is distributed in Africa
in the savanna grassland and forests south of the Sahara. The
Asian Elephant (Elelphas maximus) is found in the Indian
subcontinent, Indochina, Malaysia, Indonesia and South China,
mostly in forest habitats.
Family
Elephantidae