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flightless bird

Flightless birds are birds that through evolution lost the ability to fly. There are over 60 extant species including the well known ratites (ostrich, emu, cassowary, rhea and kiwi) and penguins. The smallest flightless bird is the Inaccessible Island rail (length 12.5 cm, weight 34.7 g). The largest (both heaviest and tallest) flightless bird, which is also the largest living bird, is the ostrich (2.7 m, 156 kg). Ostriches are farmed for their decorative feathers, meat and their skins, which are used to make leather. Many domesticated birds, such as the domestic chicken and domestic duck, have lost the ability to fly for extended periods, although their ancestral species, the red junglefowl and mallard, respectively, are capable of extended flight. A few particularly bred birds, such as the Broad Breasted White turkey, have become totally flightless as a result of selective breeding; the birds were bred to grow massive breast meat that weighs too much for the bird's wings to support in flight. Flightlessness has evolved in many different birds independently. There were also other families of flightless birds, such as the now extinct Phorusrhacidae, that evolved to be powerful terrestrial predators. Taking this to a greater extreme, the terror birds (and their relatives the bathornithids), eogruids, gastornithiforms, and dromornithids (all extinct) all evolved similar body shapes – long legs, long necks and big heads – but none of them were closely related.

Penguins !!! - Penguins !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Penguins !!!

Added 2 weeks ago by Marcin

6

Tabaluga - fairy tale for children, very liked

Tabaluga

Added month ago by #Zakreconax3

54

spring is already - You are already coming back to the snowman

spring is already

Added 2 months ago by Basiunia

17

Easter atmosphere - what tp? candles, chicken or eggs

Easter atmosphere

Added 2 months ago by stachna

51

dodo puzzle - dodo jigsaw puzzle dodo

dodo puzzle

Added 3 months ago by tre

59

lovely animals - cat talk with a dog

lovely animals

Added 3 months ago by Basiunia

14

Animals - Misiek koala on the tree

Animals

Added 4 months ago by Grażyna

60

fairy tale for children - nice fairy tale from childhood

fairy tale for children

Added year ago by Zakreconax3

69

Penguins - at least 25 characters

Penguins

Added year ago by tatiana

24

Fairy tale - The first film about how Krecik got new shorts was made in 1956. The author initially did not intend

Fairy tale

Added year ago by capitan

127

Jigsaw puzzle - complicated puzzle

Jigsaw puzzle

Added year ago by andi

23

Jigsaw puzzle - a complicated puzzle

Jigsaw puzzle

Added year ago by andi

24

Penguins - a family of friendly penguins

Penguins

Added year ago by andi

4

Penguins - Penguins from Madagascar

Penguins

Added year ago by Jola

25

Drake Ninja - A warrior ninja

Drake Ninja

Added year ago by andi

6

Incendiary - stupid fun with matches

Incendiary

Added year ago by andi

7

Angry Birds - Angry Birds - a series of computer games launched in December 2009 by Rovio Mobile, in which players

Angry Birds

Added year ago by angrybird

18

Angry Birds - Angry Birds - a series of computer games launched in December 2009 by Rovio Mobile, in which players

Angry Birds

Added year ago by angrybird

5

Angry Birds - Players take control of a flock of birds trying to retrieve the eggs they have stolen from the evil

Angry Birds

Added year ago by angrybird

38

Angry Birds - Players take control of a flock of birds trying to retrieve the eggs they have stolen from the evil

Angry Birds

Added year ago by angrybird

36

Angry Birds - Players take control of a flock of birds trying to retrieve the eggs they have stolen from the evil

Angry Birds

Added year ago by angrybird

22

Angry Birds - Players take control of a flock of birds trying to retrieve the eggs they have stolen from the evil

Angry Birds

Added year ago by angrybird

17

Penguins from Madagascar - The film tells the story of four Penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

6

Penguins from Madagascar - The film tells the story of four Penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

13

Christmas penguins from Madaga - The film tells the story of four Penguin commandos - an eccentric strategist Kowalski, a specialist

Christmas penguins from Madaga

Added year ago by ping

8

Penguins from Madagascar - The film tells the story of four Penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

9

Penguins from Madagascar - The film tells the story of four Penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

9

Penguins from Madagascar - The film tells the story of four penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

5

Penguins from Madagascar - The film tells the story of four penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

14

Penguins from Madagascar - The film tells the story of four penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

5

Penguins from Madagascar - The film tells the story of four penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

10

Penguins from Madagascar - The film tells the story of four penguin commandos - an eccentric strategist Kowalski, a specialist

Penguins from Madagascar

Added year ago by ping

10

Fairy tale - The figure of Krecik was created in 1957. A renowned creator, director of animated film, animator Zd

Fairy tale

Added year ago by Otek

84

forester - rare inhabitant of the forest

forester

Added year ago by pies

54

PANDA PO - PANDA POPANDA POPANDA PO

PANDA PO

Added year ago by PANDA PO

26

Antarctica - Antarctica Antarctica

Antarctica

Added year ago by antarktyda

27

Antarctica - Antarctica Antarctica

Antarctica

Added year ago by antarktyda

22

Antarctica - Antarctica Antarctica

Antarctica

Added year ago by antarktyda

15

Antarctica - Antarctica Antarctica

Antarctica

Added year ago by antarktyda

20

Antarctica - Antarctica Antarctica

Antarctica

Added year ago by antarktyda

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Puzzlefactory is a place where you can infinitely play assembling online jigsaw puzzles and create new puzzles from your own pictures. Finally you can make interactive puzzle from a photo of your pet or favourite movie and send it to your friends. Please note this site is mainly for children so all improper and unlawful pictures will be removed. For more information please read our terms of use. More about us...

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