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本帖最后由 yping88 于 23-11-2014 20:49 编辑
Devils @ Cradle
Tasmanian Devils are the world largest carnivorous Marsupials (食肉袋类动物) that currently found to inhabit only in Tasmania's wilderness, they prefer to live in the coastal bushlands and forest!
They have a very short life span of 5-6 years, and have a very low surviving rate as the new offspring compared to the numbers of little tiny babies produced in one gestation. A shocking poor odds as in 4 out of possible 50 newborns of one female could survive on their mother's only 4 nipples. These strongest four would hang on to these nipples after winning the competition for them, leaving the rest of the siblings starving to death.
The ones who make it to their life will highly likely suffer from the facial tumor probably due to their devouring diet habit (They will not screen out what they can eat out of a game, they will swallow the skin, meat, fur and bones altogether) and won't be able to live into their adulthood.
As a result, their numbers in the wilderness have diminished alarmingly during the last decade. In 2007, the total adult population were estimated at 25,000 after 60% decrease from the population of 2001's and they were listed as the endangered species by International Union for Conservation of Nature.
On the food chain, they stay at nearly bottom of it. They hunt for food as the scavengers (食腐动物) rather than proactively hunt for it, and they usually scare away the primary hunters from the preys by growling like a devil (Maybe that's how they got that name!) and then they would claim the carcasses their own! As an animal of small size, they have a surprisingly tough jaw that gives them the advantage when feeding on the carcasses!
Nowadays, in the devil sanctuary, they have commenced a program aimed increasing the devil infants' surviving chance by hand rearing them, or alternatively put four babies on devil mother's nipples in turn. The staff have achieved some positive outcomes, but, there are still a lot things to be done to sustain or increase the devil's population.
The promising side of protecting this endangered species is they are quite adaptable to the sanctuary's environment and feeding regimes, which micmic their natural habitant and diet pattern (Devouringly swallow all parts of one big carcass at one meal and then go for days without eating anything until next prey becomes available).
Good news is: In mainland Australia, Victoria has been chosen as the first state for a small group of devils to be introduced in. Hopefully, in the near future, we will be able to get upclose to them in Melbourne! |
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