Category Zoology

Why is it said that the numbat is an endangered animal?

            A numbat is a rare marsupial animal that is native to parts of Australia. Also known as banded anteaters, they have long sticky tongues that help them pick up termites which they eat exclusively. Usually, these animals make shelters out of old and fallen trees that have hollow logs.

            Numbats were once found across the Southern part of Australia, including Western Australia, South Australia and parts of New South Wales, Victoria and the Northern Territory. But now they are restricted to isolated areas in South-Western Australia.

            The main reason for this sort of population fall is habitat loss. Their ranges have been cleared for agriculture, and destroyed by bush fires. Besides, these are slow-moving animals that can be easily caught by predators like cats, dogs and foxes.

            In recent decades conservation programmes were active and several numbats were reintroduced to a few sites including Yookamurra Sanctuary in South Australia, and Scotia Sanctuary in New South Wales as part of captive breeding and translocation programmes.

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Why is the cottontop tamarin a rare sight?

            Cottontop tamarins are small species of primates native to the forests of South America. Presently, the population of these animals is at a dangerous level. Surveys indicate that there are just less than 6000 individuals in the world, making them a critically endangered species. Out of these, only 6000 tamarins can be found in the wild. The tropical forest edges and secondary forests from Costa Rica to north western Columbia are the places where the remaining wild population can be spotted.

            The interesting name of the tamarins comes from the elegant white fur that flows over their heads and shoulders. Typically, they are small primates with a body length of around 20 cms and tail length of 33 cms. These primates are very social and live in troops with around 14 members. Fruits, insects and green plants make up the majority of a tamarin’s diet. But they also eat rodents, reptiles, eggs and tree sap.

            The major threat for the survival of cottontop tamarins is deforestation. Besides, illegal pet trade and scientific research too contribute to their falling numbers.

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Why is the Malayan tapir endangered?

               The Malayan tapir is the largest of the tapirs native to Asia. In fact, they are the only members of this family seen in the continent, though in very small numbers. The rainforests in the Malayan Peninsula, Myanmar, Thailand and the Indonesian island of Sumatra are the places where tapirs can now be spotted.

               The number of animals surviving in the wild is unknown, but some surveys show that there aren’t any more than 2500 individuals.

               The appearances of tapirs are quite confusing. Though they look similar to pigs and elephants, tapirs are in fact related to horses and rhinos. Malayan tapirs are herbivores feeding on grass and nuts, water plants, and fruits.

               Generally, these are solitary animals with poor eyesight and a strong sense of smell. They are also excellent swimmers and divers.

               As we saw, tapirs need dense forests to survive. Hence, the primary reason for the decline in their population is loss of habitat, caused by deforestation. They are also known to be poached for meat and sport.

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Why is the Persian leopard special?

               The Persian leopard is one of the largest recognized subspecies of leopard. Also called a Caucasian leopard, or a Central Asian leopard, it is seen predominantly in Iran, and sporadically across countries like Armenia, Turkmenistan, Azerbaijan, and Georgia. These wild cats are known to live in mountainous habitats, including in dry environments, lush forests and snowy ranges.

               Typically, Persian leopards have short legs, and a very powerful frame. Coats that appear from yellow to golden brown colours with a paler fur, and the black spots seen across the body together, make the animal royally attractive.

               Although there is a relatively large geographic range for them, the population of Persian leopards is disappointing. There are estimated to be less than 900 individuals in the wild. Subsequently, they have been classified as endangered by the IUCN Red List. There are several reasons known to have contributed to the fall. Poaching for fur trade and loss of habitat due to deforestation are the obvious ones.

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Why is it said that the red-headed vulture population is decreasing because of poisoning?

 

               Red-headed vultures, or the Asian king vultures, are wild birds native to the Indian sub-continent. Typically, they feed on the decaying flesh of dead animals.

               Although once seen throughout the Indian subcontinent and South-east Asia, these vultures have undergone a serious decline in population and range. They can be seen in some areas of India, especially in the west Himalayan foothills, and rarely in Pakistan, Laos and Nepal.

               There are many reasons attributed to the falling population of red-headed vultures. One of the most important reasons is poisoning. Scientists say that the serious fall in population that occurred in the 1990s was caused by the presence of diclofenac. It is a veterinary drug that used to treat livestock. Those vultures that fed on the dead bodies of these livestock, soon died. This unfortunate series of events is said to have reduced the number of vultures by half.

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Why is the African grey parrot endangered?

               The African grey parrot is one of the largest parrots in the continent, most noted for its intelligence, and ability to mimic human speech.

               The species can be found across tropical Africa. They mainly inhabit primary and secondary lowland forests there.

               The parrots are infamous for damaging maize crops, but they mainly feed on fruits, seeds and nuts, particularly those of the oil-palm.

               The intelligence of a grey parrot is such that they can easily mimic human speech, and learn number sequences. A famous example is Alex, the captive parrot that could utter over 100 words, differentiating between colours, materials, objects and shapes.

               However, these birds are often exploited for the pet trade. Another major issue is the loss of nesting areas. According to a study conducted in 2016, the population of these parrots has declined by more than 90 per cent in Ghana due to poaching for pet trade and habitat loss.

               There are many efforts made to conserve the species, including banning of their export, increased monitoring etc. Salonga National Park in the Democratic Republic of Congo is one place where the birds are protected.

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