how widespread is polyandry among different animal taxa?
351459
I know you're probably needing a more direct answer, but there are _loads_ of information on polyandrous animals. Try using Google Scholar for serious scientific papers:\nhttp://scholar.google.com/scholar?hl=en&lr=&q=polyandry+evolution
533795
evolution. Or perhaps speciation.
1098830
There are some animals that mate for life, but i think that we shouldn't try to view their emotions in terms of human emotions. But I'm sure that they do lust after one another. Otherwise i don't think there would be much mating going on.
800055
Birds and bees did NOT get together. I don't even know if that would be proportianally possible, even if they tried. Females are considered the birds, and some older males still use the word bird to say female, eg. "Did you see that bird at the cafe?"; however such a reference is usually from older men. Very few animals do it with another species, and the two species' are usually very similar, eg. Donkeys and horses can have a baby mule, and different types of dog can breed.
382
Depends on what your view on monogamy is? In birds that many are monogamous for a single nesting (House Wrens), an entire breeding season (most bird species, including most passerines), several successive breeding seasons (observed in some pairs of American Robins, Tree Swallows, Mourning Doves, etc.), or life (albatrosses, petrels, swans, geese, eagles, and some owls and parrots).\n\nThat said many scientist believe that "In avoiding extinction, it pays to be promiscuous".
906398
Not possible for cross species mating in nature.
1008571
Let's start with some background information.  Polygamy exists in three specific forms, including polygyny (one man having multiple wives), polyandry (one woman having multiple husbands), or group marriage (some combination of polygyny and polyandry). Historically, all three practices have been found, but polygyny is by far the most common.\n\nIn America the Mormon religion is the most famous for polygamy.  The Church of Jesus Christ of Latter-day Saints practiced polygamy in the United States and referred to it as "plural marriage".  Polygamy among these groups persists today in Utah, neighboring states, and the spin-off colonies, as well as among isolated individuals with no organized church affiliation. Polygamist churches of Mormon origin are called "Mormon fundamentalist". According to one source, there are as many as 37,000 Mormon fundamentalists, with less than half of them living in polygamous households.  Most of the polygamy is believed to be restricted to about a dozen extended groups of polygamous Mormon fundamentalists.\n\nWith this one example, proof that polygamy is not immoral to the entire world.
454001
you got zebrinny(offspring of male horse and female zebra),zebrule(hybrid offspring of male zebra and female horse)zebu(ox with hump and dewlap)zemni(blind mole rat)zho(cross between yak and a cow),zizel(chipmunk)zonure(small south african lizard)zosterops(a small tropical bird)zumbador(south african humming bird).it was real learning for me too...answering this question..after listing all this i began thinking if getting all this was a kind of zoosophy or zoomania!!
809779
1. b, because even if the father was heterzygous, there would still be a 3:1 ratio of brown eyed offspring\n2.d, autotrophs are organisms that produce their own food and do not need to  get nutrients from other sources\n3. True, I believe that fertilization occurs in all sexuallly reproducing species, but there are some organisms that reproduce asexually, but you may not be talking about those.\n4. False, There are asexual organisms that are eukaryotic
748122
Yes.  Consider dogs, which are all considered to be the same species.  Yet, it would be difficult to cross a Great Dane with  a Yorkshire Terrier (no silly jokes about stepladders please - this is Science!!).  Because of th edimorphism, these are effectively two different species - often called "Ring species".  You can look that term up on the web.
353817
One of the most intense competition for mates in the cetaceans occurs in the right whales (Eubalaena glacialis and E. australis).\n\nGroups of males mob the females, and attempt frantically to mate with them.  Sometimes there are penis wrasslin' matches as the males each try to be the one who gets his genetic material in the right location.\n\nFemales, especially after several males have already harassed her, will often roll away or otherwise discourage the males.\n\nBecause of the intense competition, the right whales have the largest testicles in the animal world (about the size of Volkswagens), and produce copious quantities of sperm.  They use the blasts of sperm to try and blast any of their competition's sperm out of the way.\n\nI've heard stories (I can't confirm if it's true) that on at least one occasion a Zodiac boat carrying whale researchers got too close to the action.  The female used the Zodiac to block her naughty bits, and the researchers found themselves in the middle of the battleground of two right whale penises.  Both males thought they were successful and let blast, coating the researchers with massive loads of whale sperm.\n\nIn Chris Moore's novel "Fluke", this event occurs to two female researchers, who promptly become lesbians.
467577
Yes, although for a long time, it was assumed that most animals had a 50/50 chance of being right-handed, it is now generally accepted that most (just like humans) are predominantly right-handed. This has wide-ranging implications for the study of human lateralisation.\n\nGo to www.pubmed.org and search 'laterality' and 'animals', you'll get many studies on the topic.\n\nall the best, hope that helps!
314891
Only 10 percent of all animals in the animal kingdom mate for life, so the odds against humans being monogamous.And love has nothing to do with sex,as the worlds oldest professions can attest to!
1022725
As we know from biological studies in the field, many animals are homosexual.  Hundreds of species are covered in the seminal work in the area -- Biological Exuberance by Dr. Bruce Bagemihl, published by St. Martin's Press.  Higher and (to my surprise) lower animals routinely engaged in homosexual behavior -- including EXCLUSIVELY HOMOSEXUAL BEHAVIOR in hundreds of species.  Those species with pair bonding demonstrated homosexual pair bonding as well.\n\nIt's a fascinating read.\n\nRegards,\n\nReynolds Jones\nSchenectady, NY\nhttp://www.rebuff.org
40335
Some reptile species are parthenogenetic (from Greek: virgin + originate, generate). That is, the development of the ovum can be triggered without sperm intervention.\nAs a consequence, these populations are only formed by females and all the offspring are genetically identical to their mothers (unless there is some recombination at cross-over, which I'm not sure about). \nThere are only a few lizards and snakes that present this mechanism; see the links below for the best known parthenogenetic snake species (there are probably others that have not been studied yet). \nHere in Argentina we have some parthenogenetic lizards! :)
196176
Since there r 3 types of love,I'd say yes.The 3 types r as follows; a.philial (friendly/brotherly love) ,b.eros  (sexual,romantic love shared btween a man & his wife) c.agapie (not applicable here) God's love 4 mankind.There4 a man can love more than 1 woman but it's almost impossible 2 love 2 women the same way.He will love 1 sincerely while lusting/desiring another. This kind of affection has been discribed as "animal lust" since animals were created with the capacity 2 mate with more than 1 partners @ a time eg: dogs tho. not all animals do this.The love a man feels 4 his mother is another version of the first & is the first love all persons will feel.
459867
Not all animals have multiple partners.many have the same one year after year.to reproduce. However most of the animals just mate to reproduce and that's all. they just don't go having sex with every species of their kind just have sex,like us wonderful humans tend to do.for animals it's not about how many chicks they can get "laid" by.It's only to keep their species in existence..