What is the difference between the Chacoan Peccary (Catagonus wagneri) and the Southern White-Lipped Peccary (Tayassu pecari albirostris)?
The Chacoan Peccary and the Southern White-Lipped Peccary are both pig-like ungulate (hoofed) mammals with short legs, and small, narrow feet.
The Chacoan Peccary and the Southern White-Lipped Peccary have a tough, leathery, pig-like snout (nose).
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What is the difference between the European Wasp (Vespula vulgaris) and the European Paper Wasp (Polistes dominula)?
The European Wasp, also called the Common Wasp, and the European Paper Wasp are both vespid insects.
The European Wasp and the European Paper Wasp are both social wasps living in colonies with a queen wasp and worker wasps.
The European Wasp and the European Paper Wasp both have black and yellow bodies with yellowish-orange legs.
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What is the difference between the Finnish Forest Reindeer (Rangifer tarandus fennicus) and the Woodland Caribou (Rangifer tarandus caribou)?
The Finnish Forest Reindeer and the Woodland Caribou are sub-species of the Reindeer (Rangifer tarandus), an ungulate (hoofed) mammal in the deer family.
The Finnish Forest Reindeer and the Woodland Caribou have long legs with wide, crescent-shaped, cloven (split) hooves for walking on snow.
The Finnish Forest Reindeer and the Woodland Caribou have antlers. The male has large V-shaped antlers, that are larger than the female’s antlers.
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What are the differences between the Greater Rhea (Rhea americana) and the Lesser Rhea (Rhea pennata)?
The Greater Rhea and the Lesser Rhea are both large, flightless, ratite birds with long legs and a long neck, with a body of fluffy grey feathers.
The Greater Rhea is larger than the Lesser Rhea.
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What is the difference between the American Bison (Bison bison) and the European Bison (Bison bonasus)?
The American Bison and the European Bison are large ungulate (hoofed) mammals in the bovine (cattle) family.
The American Bison and the European Bison are artiodactyl, because they have cloven (split) hooves.
The American Bison has longer hair on its neck, head, and forequarters than the European Bison.
The American Bison has less hair on its tail than the European Bison.
The American Bison has shorter horns and tail than the European Bison.
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What are the similarities and differences between the Asian Black Bear (Ursus thibetanus) and the European Brown Bear (Ursus arctos arctos)?
The Asian Black Bear has silky black fur and the European Brown Bear has dense brown fur.
The Asian Black Bear is arboreal (living in trees) and the European Black Bear is terrestrial (living on the ground).
The Asian Black Bear is lighter and thinner than the European Brown Bear.
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What is the difference between the Oscellate River Stingray (Potamotrygon motoro) and the Thornback Ray (Raja clavata)?
The Oscellate River Stingray is a marine (saltwater) fish, whereas the Thornback Ray is a freshwater river fish.
Both the Oscellate River Stingray and the Thornback Ray have two raised eyes, close together, on the top of their backs.
The Oscellate River Stingray has a beige or brown body with numerous yellow-orange dark-ringed spots, whereas the Thornback Ray varies in colour from light-grey or light-brown with either dark or light blotches.
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What are the differences between the Asian Hornet (Vespa velutina) and the European Hornet (Vespa crabro)?
The Asian Hornet and the European Hornet are both insects in the family of eusocial wasps. They both live in colonies of several thousand individuals.
The Asian Hornet has a smooth, black and yellow-orange body with yellow legs and black wings, whereas the European Hornet has a smooth, black and yellow body with distinctive yellow legs and reddish-orange wings.
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What is the difference between the foot of the Chimpanzee (Pan troglodytes), Gorilla (Gorilla gorilla), and Orangutan (Pongo pygmaeus)?
The Chimpanzee, Gorilla, and Orangutan are primates with five digits on each foot (five toes) with keratin toe nails. Humans also have five digits on each foot with keratin toe nails.
The Gorilla has shorter, wider digits than the Chimpanzee and Orangutan.
The Chimpanzee, Gorilla, and Orangutan have prehensile (grasping) feet. Humans do not have prehensile feet (their feet cannot easily grasp objects).
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What is the difference between the hand of the Chimpanzee (Pan troglodytes), Gorilla (Gorilla gorilla), and Orangutan (Pongo pygmaeus)?
The Chimpanzee, Gorilla, and Orangutan are primates with five digits on each hand (four fingers and one thumb) with keratin fingernails. Humans also have five digits on each hand (four fingers and one thumb) with keratin fingernails.
The Gorilla has shorter, wider digits than the Chimpanzee and Orangutan.
The Gorilla has a wider palm than the Chimpanzee and Orangutan.
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The Kangaroo, Pademelon, Tree-Kangaroo and Wallaby are all macropod (large-footed) marsupial (pouched) mammals.
The Kangaroo, Pademelon, and Wallaby have triangular-shaped faces with black noses, whereas the Tree-Kangaroo has a square-shaped face with a pink nose.
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What is the difference between the Large White Butterfly (Pieris brassicae) and the Small White Butterfly (Pieris rapae)?
Both the Large White Butterfly and the Small White Butterfly are white insects in the Pieridae family of white and yellow butterflies.
The Large White Butterfly is about 5-7 centimetres (2-3 inches) across its wings, whereas the Small White Butterfly is about 3-5 centimetres (1-2 inches) across its wings.
The Large White Butterfly has a black band at the tip of its forewings (front wings), whereas the Small White Butterfly has no black bands.
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What is the difference between a Swallow and a Swift?
Both Swallows and Swifts have long pointed wings.
Both Swallows and Swifts have short legs.
Both Swallows and Swifts have wide beaks to catch insects.
Both Swallows and Swifts are highly aerial when flying.
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What is the difference between the European Carp (Cyprinus carpio) and the Mirror Carp (Cyprinus carpio carpio)?
Both the European Carp (which is also called the Common Carp) and the Mirror Carp are freshwater cyprinid fish.
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What is the difference between a barbel and a whisker on a fish?
Catfish and carp have barbels.
Some people call the barbels whiskers, but they are not whiskers.
A barbel is a structure at each edge of the mouth of a carp and catfish. It can be long or short.
A carp has two barbels – one on each side of its mouth.
A catfish has several pairs of barbels – on each side of its face.
Each barbel has taste buds on it, as well as smell sensors.
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What is the difference between the Emerald Tree Boa (Corallus caninus) and the Green Tree Python (Morelia viridis)?
The Emerald Tree Boa and the Green Tree Python are both non-venomous arboreal (tree) reptiles and snakes.
The Emerald Tree Boa and the Green Tree Python are bright green with yellowish underbellies.
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What are the similarities between the Alexandrine Parakeet (Psitacula eupatria) and the Rose-Ringed Parakeet (Psittacula krameri)?
Both the Alexandrine Parakeet and the Rose-Ringed Parakeet are Asian parrots with mainly green feathers and a thick red beak.
The Alexandrine Parakeet has a red beak with yellow tips, whereas the Rose-Ringed Parakeet has no yellow tips on its beak.
The Alexandrine Parakeet has a red patch on its shoulder, whereas the Rose-Ringed Parakeet has no red patch on its shoulder.
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What is the difference between the Emu (Dromaius novaehollandiae) and the Greater Rhea (Rhea Americana)?
The Emu and the Greater Rhea are large fightless birds. The Emu and the Greater Rhea are both ratites, because they cannot fly (the Ostrich, Kiwi, and Cassowary are also ratites).
The Emu and the Greater Rhea have a large, soft, grey-brown feathered body, a long featherless neck, and long featherless legs with three toes.
The Emu has orange-brown eyes, whereas the Greater Rhea has blue to brown eyes.
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What is the difference between the Common Goldeneye (Bucephala clangula) and the Smew (Mergellus albellus)?
The Common Goldeneye and the Smew are both medium-sized birds in the family of diving ducks.
The Common Goldeneye has bright golden eyes, whereas the Smew has brown eyes.
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What are the similarities between the Alpaca (Vicugna pacos), the Llama (Lama glama), and the Vicuna (Vicugna vicugna)?
The Alpaca, the Llama, and the Vicuna are all ungulate (hoofed) camelid mammals. They are related to the Camel.
The Alpaca, the Llama, and the Vicuna have soft sheep-like wool. The Alpaca has the second softest wool and the Vicuna has the softest wool.
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