
The
Emu
A curious wanderer
"If we had a military division with the bullet-carrying
capacity of these birds it would face any army in the world." Major
Meredith
Emus
have been walking the plains of Australia in something reasonably close to their
present form for about 80 million years. The Emu was around when the dinosaurs
still walked the plains. They knew Australia when it was covered in rainforest.
They saw the McDonald Ranges when they were the height of the Himalayas.
The
Emu's ability to survive such changes says much about its adaptability. According
to folklore, Emus have a mysterious mechanism that tells them where the rain is,
and will travel for hundreds of kilometers to take advantage of a deluge. They
seem to be keenly attuned to subtle weather cues, particularly the sight of distant
cloud formations and the sound of thunder from afar. They
are opportunistically nomadic and feed on grains, flowers, fruit, soft shoots,
insects, mice, grubs, and even other animal dung. They are powerful swimmers and
and capable of crossing any river. Although they
must drink every day, they are very good conservers of water. Their feathers deflect
most of the sun's heat which allows them to forage right through the day when
nearly all other animals must take shelter.
They
also have a great sense of curiosity and will investigate anything unusual. When
hunting, some Aborigines used to exploit this curiosity. One Aborigine would lay
on his back with his feet kicking in the air. When an Emu came to investigate,
another Aborigine would leap out of a bush and whack it with a club.
With
few humans now living a nomadic existence, a full grown emu has few predators.
But if they must fight, they have powerful leg muscles which combined with ferocious
talons, are capable of disembowelling a predator of human size.
Perhaps
the most novel aspect of the emu is its mating. Once cupid's arrow strikes, the
gentlemen and his fair maiden mate every day. Every second or third day, the female
will lay a dark green egg weighing about half a kilogram. After the lady lays
her seventh egg, the male will become broody and begin sitting on the eggs. The
female will then seek another male for more intimate rendezvous. After her act
of infidelity, she may return to lay more eggs. As many as half the chicks in
the brood may be fathered by others. Once the
male starts brooding, he will not eat, drink or defecate. For the next eight weeks,
he will survive on accumulated body fat, losing up to one third of his body weight.
Meanwhile, the female may go on to another lover's nest to lay more eggs. In a
good season, a female Emu may nest up to three times. Once
the chicks hatch, the male will protect them. He will also adopt any strange chick
found wandering, as long as it is no bigger than the chicks in his own brood.
Despite being an amazing
creature, Australians haven't always looked upon with great affection. At the
height of the depression, Western Australian farmers called in the army to fight
an "Emu War". Soldiers armed with machine guns mounted on trucks, spent several
days trying to engage the enemy. But the birds seemed adept at rapid battlefield
manoeuvres and were difficult targets to hit. When they did stop a bullet, they
showed a remarkable capacity to keep moving. The
birds even won the admiration of their enemy. The artillery commander, a Major
Meredith, later said: "If we had a military division with the bullet-carrying
capacity of these birds it would face any army in the world." The experiment
was quickly abandoned, amid debate as to who should pay for the wasted ammunition.
The dislike of Emus is largely an economic
one with graziers regarding the Emu as a competitor for food and water. Although
Emus indeed drink water and eat grass, they also benefit graziers by eating enormous
quantities of plague insects like locusts or caterpillars.
As
a commercial products themselves, Emus have great potential. They are particularly
suitable for degraded, overgrazed properties. Unlike cattle and especially sheep,
they do not cause soil compaction or destroy grass roots, and Emu dung gradually
helps native vegetation recover. Presently there
are about 250 Emu farms in Australia, and many more overseas. Emu oil is used
for the treatment of muscle aches and sprains. Emu skin makes excellent leather,
and Emu meat is sold in the niche gourmet market.
Industry
1)Oil,
feathers and meat- Under good captive conditions, a pair of mus may produce
ten eggs a year, which yield on average 5.5 chicks. At the end of 15 months, these
would yield 4m2 of leather, 150 kg of meat, 5.5 kg of feathers, and 2.7 litres
of oil. Eggshells of infertile eggs are suitable for carving.
Icon
2)
Coat of Arms - The Kangaroo and Emu are two animals that can not walk backwards.
As a metaphor of the great Australian trait to leave baggage in the past and look
optimistically to the future, the two hold the shield on the Australian Coat of
Arms.