The wonderful world of animals

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Vervet monkeys know the only way isn’t up​

These small primates have their home in East Africa. They’ve been the subject of research into how they speak to each other - especially their different alarm calls.


Dr Williams said: “There are three different calls depending on what predator is nearby. The other group members understand it and know how to react to it.

“They’ll do an alarm call if it’s a bird of prey. If there is one coming, they’ll all climb down from the trees. If there’s, say, a leopard nearby, there’ll be a leopard alarm call and they’ll all climb up the trees. They also have a different alarm call for snakes, so if there’s a snake around they will stand on their feet.”

 

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The dik-dik is a type of dwarf antelope that lives in arid regions of East Africa. They can live in such barren environments because they get water from the vegetation they eat. They also take cover in undergrowth to protect themselves from predators, including eagles and cats.

There are four species of dik-diks, but just two of them live in Kenya. These include Guenther’s dik-dik (Madoqua guentheri) and Kirk’s dik-dik (Madoqua kirkii).

Kirk’s is the largest dik-dik, though it’s still small in comparison to other antelopes. It stands at just 45 centimeters (18 inches) tall and weighs up to 7.2 kilograms (15.8 pounds). Guenther’s dik-dik is smaller but has a longer snout.

The IUCN lists both Kirk’s dik-dik and Guenther’s dik-dik as least concern with stable populations, though they are threatened by expanding agricultural settlements and excessive hunting in some areas.

 

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Sighting of extremely rare animal in Aussie river to make history books: 'Remarkable'

While fishing for trout in a remote river, a Melbourne man discovered an exceptionally rare animal that has only been seen a handful of times over the last 200 years.

au.news.yahoo.com

 

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Can bowhead whales with their 200-year lifespan help us to slow ageing?

Researchers find Earth’s longest-living mammal is particularly good at fixing faulty DNA – and cold water may help

www.theguardian.com

 

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Toxoplasma gondii​

Toxoplasma gondii is a species of parasitic alveolate that causes toxoplasmosis. Found worldwide, T. gondii is capable of infecting virtually all warm-blooded animals, but members of the cat family are the only known definitive hosts in which the parasite may undergo sexual reproduction

 

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Babies of 'one of Australia's rarest mammals' born in wild at park for first time

In a protected forest of eastern Australia, one of the country's "rarest mammals" wandered past a trail camera, its pouch bulging slightly from the baby tucked inside. Conservationists later looked at the photos and immediately recognized them as a "major" conservation milestone.

phys.org

 

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The largest mammal ever to have existed, the female blue whale (Balaenoptera musculus) weighs a mega 190,000kg – that's significantly more than the male, which tips the scales to 150,000kg. During the main feeding season, they'll consume 3600kg of krill per day.

 

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There are 2 groups of sloth in the world​

Different sloth groups can be easily identified by the number of long, curved claws on their forelimbs. The two-toed sloths, as the name suggests, have two claws on their front limbs, while the three-toed sloths have three claws on all four limbs. The two-toed sloths are also slightly larger than their three-toed counterparts, and both fall under different taxonomic Family. Altogether, there are six sloth species that are found in the Americas, mainly in the tropical rainforests of Central and South America.

1. Hoffman’s two-toed sloth (Choloepus hoffmanni)
2. Linnaeus’s two-toed sloth (Choloepus didactylus)
3. Pygmy three-toed sloth (Bradypus pygmaeus)
4. Maned three-toed sloth (Bradypus torquatus)
5. Brown throated sloth (Bradypus variegatus)
6. Pale-throated sloth (Bradypus tridactylus)

At present, 4 sloth species are listed as least concern on the IUCN Red List of threatened species. The maned three-toed sloth is vulnerable, while the pygmy three-toed sloth is critically endangered and the sloth species at greatest risk of extinction.

 

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