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animal

Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animals in total. Animals range in length from 8.5 millionths of a metre to 33.6 metres (110 ft) and have complex interactions with each other and their environments, forming intricate food webs. The study of animals is called zoology. Most living animal species are classified in the Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes—in which many groups of invertebrates are found, such as nematodes, arthropods, and molluscs—and the deuterostomes, to which echinoderms and chordates (including the vertebrates) belong. Life forms interpreted as early animals were present in the Ediacaran biota of the late Precambrian. Most modern animal phyla became clearly established in the fossil record as marine species during the Cambrian explosion around 542 million years ago. 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago.
BOYS ON THE FIELD - BOYS ON THE FIELD
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BOYS ON THE FIELD

Added 3 days ago by Magda

55

lovely animals - lovable animals --- swans
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lovely animals

Added 4 days ago by Basiunia

37

lovely animals - I sunbathe on the beach ??????????
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lovely animals

Added 4 days ago by Basiunia

17

lovely animals - lovable animals - do not disturb
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lovely animals

Added 4 days ago by Basiunia

47 1

lovely animals - lovable animals --- a cat and a kitten
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lovely animals

Added 4 days ago by Basiunia

13 1

lovely animals - friends - cats and dog
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lovely animals

Added 4 days ago by Basiunia

22

lovely animals - blue-eyed kitty
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lovely animals

Added 4 days ago by Basiunia

13

lovely animals - saved chicken for broth
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lovely animals

Added 4 days ago by Basiunia

12

lovely animals - lovely animals --- what are your ears
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lovely animals

Added 4 days ago by Basiunia

17

lovely animals - gray kitty on the basket
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lovely animals

Added 4 days ago by Basiunia

7

sweet dog - sweet dog who sunbathes on the beach
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sweet dog

Added 9 days ago by suczka

36

Birds sat on the twig - Birds sat on the twig
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Birds sat on the twig

Added 12 days ago by Agul

109 1

lovely animals - lovable animals - a kitten with a wreath
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lovely animals

Added 12 days ago by Basiunia

53

lovely animals - the dog is lying in a meadow
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lovely animals

Added 2 weeks ago by Basiunia

25

Wilk is watching - Husky on a bench in front of the house
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Wilk is watching

Added 2 weeks ago by Druuna

37 2

I am small but lovely - Little cats are lovely
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I am small but lovely

Added 3 weeks ago by Mila

45

little rascal - small, lovely predator
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little rascal

Added 3 weeks ago by Mila

44

Moths on flowers. - Cma on the carpet of plants.
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Moths on flowers.

Added 3 weeks ago by Mila

11

Easter bunny. - Easter Bunny reusable.
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Easter bunny.

Added 3 weeks ago by Mila

41

Ostrich look. - Ostrich's look - a bird farm.
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Ostrich look.

Added 3 weeks ago by Mila

10

lovely animals - lovable animals - not surprised
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lovely animals

Added 3 weeks ago by Basiunia

13

lovely animals - lovable animals - kitten in the garden
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lovely animals

Added 3 weeks ago by Basiunia

19

aron dachshund - our dachshund loved by everyone
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aron dachshund

Added 3 weeks ago by francesca2860

17

lovely animals - lovable animals - like a dog with a cat
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lovely animals

Added 3 weeks ago by Basiunia

58

lovely animals - lovable animals - ride
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lovely animals

Added 3 weeks ago by Basiunia

58 1

lovely animals - lovable animals - ladybird
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lovely animals

Added 3 weeks ago by Basiunia

30

Uriel Puletra - his first day of life ...
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Uriel Puletra

Added 4 weeks ago by GLYCE

10

SMOK WOW SMOK - THIS IS DRAGON
 BLUE GREEN DRAGON
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SMOK WOW SMOK

Added month ago by maryna

11

lovely animals - lovable animals - dog with glasses
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lovely animals

Added month ago by Basiunia

37 1

But the cow ... - A unique cow in the USA in Arizona
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But the cow ...

Added month ago by Mila

84

Beautiful peacock. - Birds. A beautiful colorful peacock.
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Beautiful peacock.

Added month ago by Grażyna

49 1

lovely animals - way to huge heat
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lovely animals

Added month ago by Basiunia

41

Shih tzu - Doggy thinking how to go down
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Shih tzu

Added month ago by Darek B

7

Lusia Luśka - Luśka on holidays in the mountains
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Lusia Luśka

Added 2 months ago by Darek B

23 2

Kitty - Eyes when he can not see his toy :)
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Kitty

Added 2 months ago by Aneta

73

Snow leopard - The snow panther is a beautiful animal
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Snow leopard

Added 2 months ago by Aneta

38 1

A small trick - a small kitten and chairs
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A small trick

Added 2 months ago by Mila

42 3

little thing - like a toddler like a baby
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little thing

Added 2 months ago by Mila

23