Evolution of the Scorpion, from ocean to land

Fossils in Scotland revealed information about the evolution of the Scorpion, an invertebrate arthropod arachnid – and how it left the ocean to live on land.

Most arthropods (insects, centipedes, and crustaceans, such as crabs) currently living on land are small. From the Scorpion fossils found in a rock quarry near Edinburgh in Scotland in 1984, scientists (palaeontologists) found large specimens, said Ian Rolfe from the Royal Museum of Scotland. 

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How does an Australian bird eat a poisonous Cane Toad?

How does an Australian bird eat a poisonous Cane Toad?

In Australia, the poisonous Cane Toad (Bufo marinus) is not native to the country. It is an introduced, invasive pest living in tropical northern Australia that has rapidly spread due to the lack of predators. Animals that eat the warty amphibian die from the toxic secretions from large glands on the Cane Toad’s shoulder. The cardiac toxins can give all predators, such as snakes, goanna lizards, and even freshwater crocodiles, a deadly heart attack.

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Why do parrots live long lives?

Why do parrots live so long?

Scientists knew that large birds and parrots live long lives, but now a new study reveals the mystery of parrot longevity.

Researchers at the Max Planck Institute of Animal Behaviour and the Max Planck Institute for Evolutionary Anthropology in Germany studied 217 parrot species (half of the known species of parrots), such as the Scarlet Macaw (Ara macao) in South America and the Sulphur-Crested Cockatoo (Cacatua galerita galerita) in Australia. They published their results in March 2022 in Proceedings of the Royal Society B.

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Why do some animals eat pebbles and stones?

Why do some animals eat pebbles and stones?

Birds do not have teeth to chew food, so some birds eat pebbles – but not for food and nutrition – they eat pebbles to help them digest food. The pebbles are stored in their gizzard, which is located under the stomach. All birds have a gizzard, but not all birds eat pebbles – for example, fruit-eating birds do not eat pebbles because fruit is soft and easily digested. 

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The fact and fallacy about Hippo pink blood, sweat, and milk

What is fact and what is fallacy about Hippo pink blood, sweat, and milk? What is pink and what is not?

The Common Hippopotamus (Hippopotamus amphibious) is a large, semi-aquatic African even-toed ungulate (hoofed) mammal in the Hippopotamidae family.

It has a grey-brown, hairless, barrel-shaped body, with pink patches, a big head, and small stumpy legs.  

The female Hippopotamus is pregnant for eight months before giving birth to one live young at at time, called a calf. The baby Hippo is born underwater, but swims quickly to the surface to take a breath of air.

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Can animals live in ice?

Can animals live in ice?

There are animals that live on the ice and under the ice, but are there animals that can live in the ice?

Ice is frozen water. Sea ice is less compact than freshwater ice. Sea ice, freshwater river ice, and pond ice have specific thicknesses – the ice floats on the surface of the water and it does not extend to the bottom of the water. This means that animals can live under the ice.

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What are hybrid wild cats?

What are hybrid wild cats?

A hybrid is the offspring – the babies – of two different animal species from the same family when they crossbreed or interbreed. The hybrid animal usually cannot have babies.

In wild cats, for example, the Lion is closely related to the Tiger, Leopard, Snow Leopard, and Jaguar. Although they rarely crossbreed – because they live in different countries or regions – if they do, they produce hybrid wild cats. Zoos do not encourage crossbreeding, called hybridization, because they want to conserve pure genes, and because it may not be safe for the babies. 

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Why do female lions hunt instead of male lions?

Why do female lions hunt instead of male lions?

The African Lion (Panthera leo) is a carnivorous – meat eating – mammal. It kills and eats ungulate mammals (animals with hooves), such as zebra, buffalo, giraffe, wildebeest, warthog, gazelle, and impala. 

Lions live in a pride, which is a group of family members consisting of 10-12 females and their male and female children, called cubs, with one to three dominant males. When male cubs grow up, they become solitary until they form their own pride.

 

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How big is a hippopotamus mouth?

How big is a hippopotamus mouth?

The Hippopotamus (Hippopotamus amphibius) is a large African even-toed ungulate (hoofed) mammal in the Hippopotamidae family. Hippopotamus means river horse. 

It has small ears, small eyes, and a large nose at the top of its head so that it can submerge itself underwater, with only these parts of its body showing above the water. Its head is large, with a wide mouth and canine ivory tusks.

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How does the Zebra repel insects?

How does the Zebra repel insects?

The Common Zebra (Equus quagga, formerly Equus burchellii) is common in the treeless plains of East Africa and southern Africa. It is an ungulate (a hoofed mammal).

The Common Zebra is like a horse or pony with short legs, and is black and white striped. The stripes continue all the way to its hooves. No two Zebras are alike, because they all have slightly different markings. 

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