I already know its wings don't have oil and that its also known as a snakebird because of the way its swims.
127956
The anhinga is a water bird. It does not have oil glands for waterproofing its feathers like most water birds. When it goes swimming its feathers get wet. This helps it dive and chase fish underwater. However when it is above water, it must spread its wings to dry in the sun. It can fly with wet feathers but not as well.\nThe adults have beautiful white feathers. The long tail has given the anhinga the nickname, "water turkey". It is also known as the snake-bird because of its snake-like neck. The female anhinga is easy to spot. Her neck and chest feathers are much lighter in color than the male.
383512
The Oxford English Dictionary (OED) defines vestigial organs as organs or structures remaining or surviving in a degenerate, atrophied, or imperfect condition or form. This is the accepted biological definition used in the theory of evolution.\n\nThe wings of many, but not all flightless birds qualify.  Just because something has lost its primary function, does not make it useless.  Non-flight wings may have fuctions such as swimming and cooling in penguins.  In fact, wing may have first formed as cooling webs on the upper limbs, then become gliding wings, and finally, flight wings.  On the other hand, some wings are so rudimentary as to have little function at all.\n\nIn humans, the tail, even when present, is vestigial.  Some muscle attachments remain important.  There are some muscles so rudimentary that they don't always appear.  When Darwin wrote, many organs, including the liver, kidney and pancreas, seemed oversized for their known functions.  Biological science was just at the point of figuring out the details of the body.  It was in this environment that Darwin wrote.  He didn't get every detail exactly right, but his larger view has only been modified slightly.  His basic principle that conservation or regression of a structure was related to importance.  The fact that two species had the same structure, one rubust, one rudimentary was and remains evidence of common descent.\n\nThere are some useless vestigial structures.  One of the classics is leg bones in legless creatures.  Whales and legless lizards (often confused for snakes which don't have leg bones) have leg bones contained under the skin.  If a developing whale has hind leg development that is overexuberant, it may have small limbs that may produce drag, but not add much to swimming.\n\nKnowledge of biology has expanded.  Although we can find functions for many residual structures, the conservation and variation of basic structures remains evidence of common descent.
27459
nothing, its just that its hatched by different kinds of chickens. that is it.thanks for the points!
292221
The bright coloration and unique pattern act as a warning sign to potential predators. It is much the same as poisonous snakes.
428358
Because it's warm-blooded,  has fur, and gives milk.  (Even though it also lays eggs, which is very un-mammalian, scientists just agreed to classify it that way because it's more like a mammal than anything else.)
24242
No, there are some insects that do not require salt to live.
132122
Cobras taste like chicken.\nI don't want to ponder the other.
561862
http://www.rivernen.ca/bird_17.htm\n\nIs this the bird you are talking about? If so, it is called a house wren.
645469
The Texas Parks ans Wildlife doesn't have a shell capacity limit on Quail because they are endangered species.
291693
Birds hear a lot better than we do, and worms moving around in soil make noise that is distinctive. OR, maybe they have Xray vision! :-)
163653
Snakes on a plane?\nThat can turn into some wild/crazy fun...lol
553126
They must have escaped from someone - they are not native to America.  They may have been adopted by the starlings, so they will probably survive. They don't usually live in such cold climates though. Help them by feeding them through your bird feeder.  Just out of curiosity what colour are they???
675957
Nobody really knows, but the most convincing explanation I have seen is that parrots evolved as desert species. That might seem strange to people who are used to viewing parrots as animals of tropical rainforests but even today by far the greatest diversity of parrots is found in arid and semi-arid regions of Australia. Certainly the parrot beak and claw arrangements seem ideally suited to hard, dry seeds more common to arid regions than to he soft fruits of tropical forests.\n\nMany desert animals have anomalously long lifespans. That is because reproduction in desert regions is unpredictable. Rainfall varies so much that animals may only be able successfully reproduce every 5 years, or even less.  That is the situation today for many parrot species in Australia.\n\nThe first point to appreciate is that mating competition in male birds is incredibly stressful and shortens their lifespans markedly. In predictable environments that doesn’t matter because it doesn’t really matter how young a male bird dies. If every clutch survives it is more profitable for a male to mate with 20 females every year and die in 5 years than to mate with just one female every year and live for 20 years. \n\nHowever in unpredictable arid environments it is entirely possible that every single female mated with will fail to raise a clutch over an entire five year period. In such an environment a male that stresses himself by trying to be polygamous could easily die without leaving any offspring at all. With that sort of failure rate it become more advantageous for the males to become monogamous and survive for long periods than to be polygamous and survive for short periods. Although monogamous mate with fewer females they still produce far more young.\n\nWith reproductive opportunities so uncertain it becomes beneficial for a species to have longer lifespans. Birds of more benevolent climates can afford to gamble everything on a five years of reproductive success before dying but when  there is no certainty of raising even one successful clutch in that five year period such a strategy is suicidal.\n\nI guess the main to point to bear in mind is that reproductive potential is not the same as reproductive success, in fact the two are only tangentially related. While budgerigars may have a reproductive potentially of 2 young every year they never manage that in the wild.\n\n\nIt has been suggested that the same ancestral environmental uncertainty is the reason why so many waterfowl are monogamous and long-lived. Many waterfowl can only breed when rivers or wetlands flood and such floods may be many years apart. As with desert animals that makes breeding opportunities extremely sporadic and puts pressure on males to evolve long term commitments and long lifespans.
616062
It is hard-wired into their brains but the younger birds start out by following their parents south and if birds are taken out of the wild at a young age and have never migrated a small glider type plane can be flown the the birds will follow so it can be learned too.
86634
Long, broad eagle wings have a large surface area for soaring on rising warm air currents. The spaces between the feathers at the end of the wing help reduce drag and are used for fine control at slow speeds. Storks, pelicans, and hawks have wings similar in shape.
623173
All birds eat a share of grit,sand and dirt to help with their digestion. There are also small insects you can't see but they can.
129462
you can get 16 AA batteries for $9!!!!!! anyway, i guess they're water birds. wings are built for underwater type penguin events, what those consist of, i'm not quite sure