Category Similarities and Differences

What are the similarities and differences between the Chicken and the Tyrannosaurus Rex?

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What are the similarities and differences between the Chicken and the Tyrannosaurus Rex?

At first, scientists thought that dinosaurs were related to reptiles, but with research from bone and fossil material, they have formed a different view. In 2003, when scientists Jack Horner and Mary Schweitzer discovered unfossilised material inside the femur bone of a Tyrannosaurus Rex in Montana, America, they, and other zoologists and palaeontologists all over the world, documented that the Chicken and the Ostrich are living animals distantly related to the extinct theropod dinosaur Tyrannosaurus Rex (T-Rex). They said the next closest match is the Alligator.

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What are the similarities and differences between the Siberian Ibex and the West Caucasian Tur?

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What are the similarities and differences between the Siberian Ibex (Capra sibirica) and the West Caucasian Tur (Capra caucasica caucasica)?

The Siberian Ibex and the West Caucasian Tur are both mountain goats in the Bovidae family of bovines and Capra genus of goats. The West Caucasian Tur is also known as the Caucasian Ibex. 

The Siberian Ibex and the West Caucasian Tur are both large, wild, ungulate (hoofed) mammals. 

The Siberian Ibex and the West Caucasian Tur both have ridged or ringed horns – the male has large horns and the female has much shorter horns.

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What are the similarities and differences between a Grasshopper and a Locust?

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What are the similarities and differences between a Grasshopper and a Locust?

The Grasshopper and the Locust are both insects in the Acrididae family of grasshoppers, groundhoppers, and locusts. They are acridids. 

The Grasshopper has no sub-family, whereas the Locust has three sub-families – 1) Spur-Throated Grasshopper, 2) Band-Winged Grasshopper, and 3) Slant-Faced Grasshopper.

The Grasshopper does not always become a Locust, whereas the Locust is a Grasshopper. 

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What are the similarities and differences between the bat, bird, and insect?

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What are the similarities and differences between the bat, bird, and insect?  

The bat is a mammal, whereas the bird and insect are not mammals. 

The bat and bird have two legs, whereas the insect has six legs.

The bat, and many species of birds and insects can fly. The bat is the only mammal that can fly. 

The bat, bird, and insect fly in different ways.

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What is the difference between knuckle-walkers and palm-walkers?

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What is the difference between knuckle-walkers and palm-walkers?

Primate mammals – apes and monkeys – are either knuckle-walkers or palm-walkers. 

All apes, such as the Chimpanzee, Gorilla, and Orangutan, have no tail.

All monkeys have a tail. 

Apes and monkeys use their front arms to help them walk on all fours (all four appendages). They place their two long front arms and hands on the ground, with either their knuckle on the ground or the palm of the hand on the ground. 

The knuckles are the lumps on the back of the hand at the base of the fingers.

The palms are the soft, cushioned part of the front of the hand. 

So, which ones are knuckle-walkers and which ones are palm-walkers?

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What is the difference between hard coral and soft coral?

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What is the difference between hard coral and soft coral?

Corals are marine (saltwater) invertebrate animals that usually form colonies of individual polyps, mainly in tropical reefs. 

Hard coral is also called stony coral.

Hard coral is in the sub-class Hexacorallia (hexa means six), whereas bue coral and soft coral are in the sub-class Octocorallia (octo means eight).

Hard coral is in the Scleractinia order, whereas soft coral is in the Alyconacea order.

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Which is more powerful: Alligator or Crocodile?

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Which is more powerful: Alligator or Crocodile?

The Alligator and the Crocodile are both crocodilian reptiles in the Crocodilia order. The Alligator belongs to the Alligatoridae family and the Crocodile belongs to the Crocoylidae family.

The Alligator has a U-shaped snout and the Crocodile has a V-shaped snout.

The Alligator’s teeth are not visible when the mouth is closed, whereas the Crocodile’s teeth are visible when the mouth is closed. 

Both the Alligator and the Crocodile have between 74 and 80 teeth. 

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What is the difference between freshwater Flowing Water and Standing Water?

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What is the difference between freshwater Flowing Water and Standing Water?

Flowing water occurs on land in freshwater streams and rivers. Flowing water usually begins to flow due to snowmelt or lakes that overflow. The water usually flows to the sea.

Flowing water can be fast-moving, slow-moving, or stagnant (not moving – it is motionless). Scientists usally regard motionless water to be stagnant if it has not moved in four consecutive days.

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What is the difference between the Blacksaddle Filefish and the Valentin’s Sharpnose Pufferfish?

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What is the difference between the Blacksaddle Filefish (Paraluteres prionurus) and the Valentin’s Sharpnose Pufferfish (Canthigaster valentini)?

The Blacksaddle Filefish and the Valentin’s Sharpnose Pufferfish are both marine (saltwater) fish in the same family – the Monacahnthidae family of Leatherjackets.

The Blacksaddle Filefish and the Valentin’s Sharpnose Puffer are both the same size, about 11 centimetres (4 inches) long, and swim together in the same small schools in the tropical reefs of the Pacific Ocean and the Indian Ocean.

The Blacksaddle Filefish is a mimic of the Valentin’s Sharpnose Puffer, so it is extremely difficult to distinguish one from the other.

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What is the difference between the Australian Magpie and the Eurasian Magpie?

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What is the difference between the Australian Magpie (Gymnorhina tibicen) and the Eurasian Magpie (Pica pica)?

The Australian Magpie is a bird in the Artamidae family of butcherbirds, whereas the Eurasian or European Magpie is a bird in the Corvidae family of crows. The Australian Magpie is an artamid and the Eurasian Magpie is a corvid. They are both passerine songbirds.

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What is the difference between the Parrot and the Pigeon?

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What is the difference between the Parrot and the Pigeon?

The Parrot and the Pigeon are both species of birds.

The Parrot belongs to six families, whereas the Pigeon belongs to one family. The Parrot families are: Cacatuidae, Nestoridae, Psittacidae, Psittrichasiidae, Psittaculidae, and Strigopidea. The Pigeon is in the Columbidae family. 

The Parrot is arboreal, living in trees, whereas the Pigeon can be arboreal, terrestrial (living on the ground), or semi-terrestrial.

The Parrot has a slim, upright body, whereas the Pigeon has a stout body.

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What is the difference between an albino animal and a melanistic animal?

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An albino animal lacks colour, so it is white and most of them have pink eyes. It does not have the melanin that forms colour. 

A leucistic animal is light or white with normal eye colour, such as brown, blue, or green.

A melanistic animal has normal or regular colouring.

There is also a term called amelanistic, which is an animal that lacks colour in most pigments but not all, so it is partially albino, and can have pink or normal coloured eyes.

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What is the difference between the European Hare and the Patagonian Mara?

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What is the difference between the European Hare (Lepus europaeus) and the Patagonian Mara (Dolichotis patagonum)?

The European Hare is a lagomorph, specifically a leporid mammal, related to rabbits. It is also known as the Brown Hare. The Patagonian Mara is a large rodent. It is also known as the Patagonian Hare or the Patagonian Cavy, but it is not a hare and it is not related to hares or rabbits. The Patagonian Mara is a cavid, related to the guinea pig. 

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What are the differences between the Common Sea Urchin, Green Sea Urchin, and Purple Sea Urchin?

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What are the similarities and differences between the Common Sea Urchin (Echinus esculentus), the Green Sea Urchin (Psammechinus miliaris or Strongylocentrotus droebachiensis), and the Purple Sea Urchin (Paracentrotus lividus or Strongylocentrotus purpuratus)? 

The Common Sea Urchin, Green Sea Urchin, and Purple Sea Urchin are all spiny marine (saltwater) echinoderms in the Parechinidae family. Echinoderm means hedgehog skin.

The Common Sea Urchin, Green Sea Urchin, and Purple Sea Urchin are all spherical with short spines. They all have a hard shell called a test.

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What is the difference between the male and female Greater Kudu?

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What is the difference between the male and female Greater Kudu? 

The Greater Kudu (Tragelaphus strepsiceros) is an ungulate (hoofed) mammal in the Bovidae family of cattle and antelopes.It is a browser, eating plants, leaves, flowers, and fruit. It is native to the bushlands of eastern and southern Africa. 

A male Greater Kuduis called a bull and a female is called a cow.

Both the male and the female Greater Kudu have a sandy-brown body with huge cupped ears, a white chevron stripe between its eyes, 6-10 vertical white stripes on its sides, a ridge of dark hair along its back, and a short, bushy black-tipped tail. 

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What are the similarities and differences between the Giant Clam and the Maxima Clam?

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What are the similarities and differences between the Giant Clam (Tridacna squamosa) and the Maxima Clam (Tridacna maxima)?

The Giant Clam and the Maxima Clam are both marine (saltwater), bivalve molluscs in the Cardiidae family. Bivalve means two valves (or two shells). They both prefer to live on the bottom of the ocean in shallow coral reefs.

The Giant Clam and the Maxima Clam both have a thick, ridged calcium carbonate shell, called a mantle. Their shells, which can open and close, have two equal-sized calcareous valves connected with a flexible adductor muscle. 

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What is the difference between the South American Fur Seal and the South American Sea Lion?

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What is the difference between the South American Fur Seal (Arctocephalus australis) and the South American Sea Lion (Otaria flavescens)?

The South American Fur Seal and the South American Sea Lion are both marine (saltwater) mammals in the Pinnipedia clade of sea lions and fur seals. They are both pinniped mammals, which means that they are fin-footed.

The South American Fur Seal are both in the Otariidae family, which means that they both have ears. The South American Fur Seal has no external ear flaps, whereas the South American Sea Lion has small but clearly visible external ear flaps. 

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What is the difference between the Eurasian Blue Tit and the Great Tit?

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What is the difference between the Eurasian Blue Tit (Cyanistes caeruleus) and the Great Tit (Parus major)? 

The Eurasian Blue Tit and the Great Tit are both in the Paridae family of passerines. 

The Eurasian Blue Tit and the Great Tit both have large white cheeks, a yellowish-green back, and blue-grey wings with white wing-bars.

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What is the difference between the Brazilian Tapir and the Malayan Tapir?

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What is the difference between the Brazilian or Lowland Tapir (Tapirus terrestris) and the Malayan Tapir (Tapirus indicus)? 

The Brazilian Tapir and the Malayan Tapir are both ungulate (hoofed) mammals in the Tapiridae family of tapirs and bush cows. They are related to the horse and the rhinoceros.

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