Reproduction Outside of Species?

I grew up with the understanding that it was impossible to breed between different species. However I've seen this contradicted by hybrids among the four Big Cats (Lion, Tiger, Leopard and Panther) who can all crossbreed.





So, is the rule that you have to be of the same genus to reproduce and not genus? And if so, would it be possible for members of the Homo genus to have crossbred as well (i.e,. a Neanderthal and an early Modern Human)?





Thanks!

Reproduction Outside of Species?
Great question. Alot of folks define a species as a group of organisms that can interbreed. There are however examples where this definition fails. I'm not familiar with your example but if its true, there ya go.





So what is a species or for that matter a genus? These are terms that WE made up to help us begin sorting and classifying all of life. While the system is VERY useful for naming it can sometimes get us in trouble. Life doesn't conform to the definitions of our terms!





So, then what is the barrier between two organisms from reproducing? - It's GENETIC!





Durring mitosis, chromosomes are replicated and aligned along the metaphase plate. If the genome of two organisms is sufficiently similar to allow the chromosomes to align (and begin crossing over) such that each daughter cell gets an intact copy of the genome.. then the two organisms can sexually reproduce.





IF the genomes are sufficiently different and chromosomal segregation fails - then the two organisms can't have sex.





Another barrier I've thought about is binding between ZP3 and the ZP3 receptor but I don't have any data on this but someone else might.





So, answer the question already right? Could neanderthal and early homo sapians interbreed? Only if their chromosomal structure was similar enough to align and segregate properly during mitosis. Note that most of the anthropoligcal data suggests that the two groups DID interbreed.
Reply:Very cool. I'm glad you got the most votes. I didn't mean for it to go up for voting between you and everyone else.





But this goes to show that too many Yahoo! Answers users just vote for the sake of getting a point (going by how close #1 was to beating you). Report It

Reply:Ligers and Tigons (name differs depending on which parent is which) are common enough in zoos but not in the wild, but they are sufficiently common enough in captivity to know that they ARE fertile, this is probably because all members of the family have the same number of Chromosomes.





Mules are generally infertile beacuse they have an odd number of chromosmes so cannot split them equally to produce vaible sex cells., however, there is one case of a mule succesfully fertilizing a donkey but this may be due to a chromosomal "defect" in the first place.





That have also been cases in the wild of grizzly and polar bears cross-breeding.





Species are not supposed to be able to interbreed but it depends if they've evolved sufficiently to be totally distinct including on a genetic level. The common ancestor of all cats maybe only a few million years distant and therefore tIgers and lions at least are not genetically different enough as yet to not be able to have offspring together.
Reply:I think it can happen. Because if they can cross breed donkey and the horse and make ponies y cant they since the all belong to Homo
Reply:the definition of species is not so concrete as people think, however most would agree that a species must be able to reproduce .


ligres, tions, mules etc are infertile.


there are pre and post mating mechanisms which prevent these hybrids from reproducing, and this is what is meant when people say it is impossible to breed between different species.





i.e, even if the offspring of crosses are viable, they are usually not fertile.
Reply:Many plants occasionally cross with different species within the same genus (oaks, for example). Others reproduce by cloning (hawthorns, for example), so how do you apply the definition?


Some critters don't normally cross because they live in different locations and/or have different behaviors so we call them separate species. But when brought together under different conditions (say, at a zoo), they might occassionally mate and produce offspring.


That shows us that our definition of species is somewhat arbitrary, though very convenient. Some plants--and animals for that matter--may not have read the book and don't fit the definition :-).


This is consistent with our understanding of evolution. Many species have completely separated from others and there is no interbreeding at all. But some have not separated completely, or are incompletely separated, so they can cross. Varieties are populations that are somewhat distinct, but not distinct enough to be called separate species. They may become separate species in the future, but not necessarily.


Back to the oak example: oaks have separated into two main groups--the red oak group and the white oak group all in the same genus, Quercus. Members of the red oak group can hybridize within the group, and members of the white oak group can hybridize. For example, white oak and burr oak form a hybrid.


As to the question about Neanderthals, the final answer is not in, but it is certainly possible, and some anthropologists think it likely.
Reply:About natural limits, I do not know. However, the species barrier is down. It is now possible to include traits from just about anything into any other life-form.





Perhaps if that should interest you - a search for species barrier down might do the trick.
Reply:The answer is, if you have the same # of chromosomes it's likely. There are other things that matter, too, but if there are a different # of chromosomes then it's not possible. I don't know how many chromosomes all the different species have though, so I can't tell you if the homos interbred a long time ago. I know humans have 46 though.
Reply:Yes, none who qualified is prepared to mention that there are differences in the human species. Geneticists refuse to admit it because it would just cause more trouble but it will leak out, there are slightly different , well not species of humans but origins of genes , and you would be suprised who.
Reply:The traditional definition of a species specifies that they can breed within, but not outside of their group.





Of course, with the wonderful diversity we have on our beautiful planet, there are situations which stretch the rules a bit. Take for example the mule - a combination of horse and donkey, or the liger (lion and tiger) not to mention a whole array of plants...





The main thing is 'viability', and very often these species cross-over organisms are reproductively infertile, or their offspring are.





The problem when considering modern humans and Neanderthals, would be time. I think Homo Habilis and Neanderthalis cross bred, but I'm not sure.

UMNO party Malay/Islam? Do young Malay weak & they need privillege?

After 50 yrs of celebrating Merdeka.





Each time I see UMNO gathering, the leader will shout we fight for race, religion.......





Sorry! I heard you call your people come fight with me in Malaysia to ..... %26amp; for ? ( UMNO leader you knew very well)


----------------------------------------...





We need more benefits, previllege .............





I think any Malaysian or young Malay generation rather be kind rabbits in Malaysia to allow all the tortoise or weak poor people to run first.





We are ready to be a united young generantion that act like big Elephant have wisdom to work together, Lion %26amp; Tiger that roar with the power to move fast %26amp; steady in this century and shine in the world.





We are ready to make Malaysia pround %26amp; not jaguh Kampung.

UMNO party Malay/Islam? Do young Malay weak %26amp; they need privillege?
Dude, all of the words you wrote are written in English, now arrange those same words into proper sentences so we ALL can understand what the heck you're talking about.
Reply:hm i am not sure what the heck ur talking about but its ok llol

Help me i am compleatly insain help me change my hobbies and kids names?

hi im barbra i have 5 kids named after flowers


polly


poppy


lotus


rose


tulip


7 named after farm animals


lamb


chicken


pig


dog


hen


cat


sheep


15 named after zoo animals


lion


tiger


zebra


monkey


seal


giraffe


penguin


polar bear


sea hourse


crab


dolphin


Leopard


mia cat


and finaly 14 named afer different words;;


but


and


because


dad


mam


flange


carbrata


phone


sad


peice


change


poo


camera


television





my hobbies include;;


robing banks


listening to opra


and tenis

Help me i am compleatly insain help me change my hobbies and kids names?
I think you have have TOO many kids, probably a hillbilly...


go to baby names dot com and find some friends to hang out with..
Reply:I suggest using some birth control perhaps sterilization, signing the kids over to social services, and investing in some top notch psych therapy. Good luck.

dental procedures

What names????? Webkinz?

what should i name a


Bull Frog


Spotted Frog


Black and White Cheeky dog


Lion


Tiger????


i really want these


i do want more but i only named some

What names????? Webkinz?
Bull Frog: Spotts





Spotted Frog: Spotsy/ Spot/ Spat





Black and White Cheeky dog(I want that sooo badly too!!!): Winkie/ Checkers





Lion: Killer/ Predatorious/ Pred, lol





Tiger: Bandit/ Sandie?? idk, lol





Okay, hope u like these names, lol!!!





~Shannon
Reply:bull frog: shrek! :-D





spotted frog: Kermit! :-D





black and whtie cheeky dog: i have that one too, i have no idea. sorry. Maybe patches





Lion: Simba





Tiger: tigger
Reply:B%26amp;W cheeky dog-Spot





-Wishbone





-Scruffy





-Charcoal





-Shadow





-Milkshake





-Patches





-Patch





-Chai





-Domino





-Chocolate Chip





-Salt





-Pepper





-SP (Salt %26amp; Pepper)





-Checker





-Tuxedo





-Speckles





-Speckle





-Speck





-Snoopy





-Mazie





-Lucky





-Lola





BULL FROG


-Toady





-Lilly pad





-Lilly





-Bull





SPOTTED FROG


Satchmo





-Bumpy Rocketfrog





-Billy-bob





-Bully





-Bellows





-Toadie





-Rocky





LION


-Simba





-Mufasa





-Scar





-King





-Nala





-Aslan





-Austin





-Roar





-Roary





-Roarsalot





-Sir Roarsalot





-King Roarsalot





-Prince Roarsalot





-Daisy





-Ginger





-Gingersnap





-Lila





-Graham





-Caramel





-Delilah





-Dex





-Dex Dangerous





-Leo





-Leopold





-Leroy





-Lee





-Leah





-LeoKinz





-Asland





-Lional


TIGER


-Toby





-Tiger





-Fido





-Stripes
Reply:webkinzclub.com
Reply:1.Bull Frog: Billy, Bobby, Besty, Becky, and Bethany


2.Spotted Frog: Stephanie, Sally, Susan, Sandy, Sean, and Sierra.


3.Black and White Cheeky Dog: Whitney, Buster, Walter, Buzz, Brad, and Betty.


4.Lion: Lilly, Lola, Lenny, Laura, Lauren, Landon, and Lala.


5.Tiger:Timmy, Trixie, Tony, Tucker, and Thomas.
Reply:bull frog-spike


spotted frog-spot


black and white cheeky dog-sunshine


lion-fluffy


tiger-stripes





go to webkinzclub.com to get more names
Reply:It is suppose to be ur opinion but if u want other then go to webkinzclub.com and look on ur left side for kinz names
Reply:Bull Frog --Burp


Spotted Frog- spots


Black and White Cheeky dog-oreo


Lion -simba


Tiger -scar

Write habitat and adoption of five animals.?

as lion, tiger, elephant, fox and giraffe.

Write habitat and adoption of five animals.?
Animal-----habitat-----adaptation





1.Fish---aquatic-------have fins, gills, streamlined body





2.Frog---amphibious-----have gills in tadpole stage, lungs in adult, cutaneous respiration too.





3.Snake----subterranean-----limbless





4.Bird-------volant---------wings, light endoskeletorn, feathers





5.New world monkeys----arboreal----prehensile tail





6. Camel---------Xeric-----padded hoof, water reservoir in the gut,

What is a Animal(s) you want to own?? Any Animal(s) in the whole universe????

What you cant buy/get (like, a lion, tiger, bear, (oh my) maybe a Alien pet(s) or What Ever????





how do you like my question????

What is a Animal(s) you want to own?? Any Animal(s) in the whole universe????
a baby cheetah cub
Reply:Tiger, Liger, panda, a unicorn, a kirin
Reply:None. Because I don't have the time to look after them. I woudn't want them to ended up dying in my hands from starvation.
Reply:A baby Polar Bear, they are the most incredible animal alive....so (hopefully) it would love me from when it was a baby.... :)
Reply:A horse.
Reply:A mermaid and a unicorn and maybe a dragon. Oh yeah, and a Keebler elf and an Oompah-loompah!
Reply:Black panthers... And perhaps a few tigers.
Reply:In the whole universe ?? then may be an Alien but I don't consider them as animals. I love animals though %26amp; tiger, lions all are good options I guess ;-) but I would go for Alien as it would be something new to me !





About your question ? I think it's okay
Reply:A Boarder Collie! Best dog ever!
Reply:a midget.





kidding.








I wouldn't mind having a leprechaun though or a gnome.

Best big cats?

can u name ur cest wild cats in the worrld mine are the cheetah leopard jaguar lion tiger puma snow l .. clouded l.. lynx bobcat

Best big cats?
can't you guess?





Well my others are


Tigers


Cougars


Black panthers


Jaguars


Cheetahs


Leopard
Reply:cougar, panther, snow leapord, mountain lion,
Reply:lions, lions, lions, lions, lions, and lions =\