Asian elephant with straight inferior edge on their ears. Photo by Thangaraj Kumaravel https://creativecommons.org/licenses/by/2.0/ |
African elephant with curved inferior edge in the ears. |
Tusks are
one of the most interesting features of elephants and yet most of us do not
know much about them. In essence, they are modified teeth, more specifically, incisors.
They start appearing around the age of 6 to 12 months and grow continuously at a rate of
7 inches (17 centimeters) per year during all the lives of the elephants. These are
used to achieve many tasks such as digging holes to find water or roots, to
lift objects or to remove bark from trees. Elephants also utilize them to fight
for dominance and to defend themselves. But the most amazing fact about them is
that, just as how humans are left or right-handed, elephants have a dominant
tusk. It can be differentiated because it is usually shorter and less sharp
from use. The last interesting aspect about them we are going to talk about is
that they are present in both males and females of African elephants, but only
in some males and never females of Asian elephants. This is another way to
distinguish between the two kinds.
If their
tusks are widely known, their trunk is probably their most famous feature. It is
the result of the fusion between their nose and their upper-lip and it contains
up to 150,000 different muscles, and we can differentiate three different kinds: dorsal,
ventral and lateral. These are all connected to the skull and coordinate to
generate precise and complex movements. Elephants have found many different uses
for their trunks, such as breathing, smelling, grasping things or sound
production. They can also be used to collect food or even for fighting. Finer work
such as opening peanuts can also be performed with it. Related to
water, elephants use it to suck water to drink or to spray themselves and they
have also been seen using it as a snorkel.
As any animal
of this colossal size, they have some adaptations and behaviors that allow
them to keep their metabolism working. They must eat up to 330 lb (150 kg) of
food per day and drink around 11 US gallons (40 l) of water. Due to their size,
they are key species for their ecosystems, as the impact they generate is
essential for the survival of other species. The holes they dig are used as
shelter by other animals, their dung feeds other species, etc. Their big bodies
generate a lot of heat, that is dissipated by their highly vascularized ears.
Their gestation period is the longest of any mammal, lasting around 22 months. After
the calve is born, the whole group takes care of it.
Another amazing
fact about elephants is that they are extremely intelligent. They are
self-aware animals, which means that they understand the concept of their existence
as individuals. They share this quality with some cetaceans, apes and us, humans. Their intelligence has led them to use tools such as branches or logs
to achieve tasks.
Although quite often facts about animals are just myths, elephants do have excellent memory. They can
remember places, people or sounds for very long periods of time.
Unfortunately,
when an animal is as magnificent as elephants, it suffers the risk of catching
the eye of wildlife traders. Elephants have been captured to work at circuses
or tourist attractions and hunted to sell their tusks, which are made of ivory.
From Terrestria: The Earth’s Brand, we condemn wildlife trade and capture and
we think animals should be free to live how and wherever they want. We encourage you to report any illegal wildlife trading to the authorities because it is extremely harmful for many species.
Elephants are
fascinating creatures with many unique features. They are necessary for the good
health of the ecosystems they inhabit and they are one of the proofs that there’s
great intelligence out of the human species.
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