Are there any animals which do not attempt to protect themselves when attacked?
446819
If you consider evolution, any animal that is able to protect itself will. They would have only adapted the ability to fight off enemies or hide from them if it was something that they used and it saved their lives. The only "passive" animals out there are the ones who don't have the ability to defend themselves. So to answer your question, no, there are no animals who naturally choose to not protect themselves when they are capable. Only on an individual basis could this happen. There are no known species or populations that do that.\n\nThe sloth is endangered because we cut down its trees that keep it safe. Frogs don't let animals eat them, they try to run away. The closest thing to what you are describing that I can think of would be a mother duck pretending to be injured to lure the predator away from the chicks. Of course, when she gets it away from the chicks, she too flies away.
698699
Somewhere I read that their spray mechanism involves an eversible gland. If the gland is already out when you pick up their tail, it's too late for you. But if it hasn't, then they can't evert it with their body weight on their tail. There's no way to see it so it's mighty risky.
1027039
Some of them do, and some (like dogs) do not.
686578
Predator,technically.They're poisionous,so it kinda cuts down on natural enemies.
701850
No, they don't.  Suicide has to do with choice.  You might have heard the stories about  scorpions--if you surround one with fire it will sting itself so it won't get burned.  But even that is not accurate.  They, like any animal, are sensitive to heat, so in its state  of shock reacts by trying to sting (its defense mechanism).  But it does not inject itself, it just dies from the heat.  There is also the lemming myth. Lemmings do not periodically hurl themselves off of cliffs and into the sea. Cyclical explosions in population do occasionally induce lemmings to attempt to migrate to areas of lesser population density. When such a migration occurs, some lemmings die by falling over cliffs or drowning in lakes or rivers. These deaths are not deliberate "suicide" attempts but accidental deaths. \n\n So, no.  The only animals that "choose" to die are humans.
125241
Polar bears don't have to defend themselves from anyone or anything other than human hunters, and even then often the polar bear can get the upper hand.  Polar bears tend to live at the edge of the floe ice, so they can easily swim away from anything they want to avoid.\n\nPolar bears really can't defent themselves from the main things that are really endangering them, mostly the melting polar ice cap.
268665
Because theyre not dangerous as long as no RETARD (and in the words of Carlos Mencia a DE DE DE!!!) goes and bothers them. Humans are the dangerous animals, and most if not ALL animals will not bother anyone as long as they are left to their own devices.
450124
They tend to be an agressive snake.  They do not make good pets (Yes, there are some that remain small enough to be pets).\n\nOther than that, don't know what you're looking for...
969693
Meercats!  OK I guess this is not the answer you're looking for, but they're definitely natural, have a natural resistance to venom and actively hunt scorpions.  In addition they make great pets - really cute and very sociable!
714159
Most under locked up in a fire proof gun vault. \nOne hand gun to protect against intruders in nightstand by bed.\nLive in the country. Have big cats, coyotes, an occasional bear, an occasional wolf as well as poisonous snakes. Carry handgun with me when any distance from the house for protection against said above.\nIf they start getting too close normally a warning shot scares them off especially the cats.\nCoyodogs (cross between coyotes and dogs) and wild dogs are the most troublesome. They have no fear of man and kill anything just to be killing. They will attack a man given the chance.
698767
As what being said of eagles: they usually stay away from human beings and rarely attack except when cornered. It can be aggressive towards humans who disturb its nesting sites or appear to be a threat to its young.\n\nI believe that eagles have different moods too - you are unlucky to meet one with a bad mood. It is not strange. I heard of many cases of human attacked by eagles. I had a friend before who suffered from scratch marks on his arm and head.♥ \n\nRead this:http://www.world-science.net/othernews/060829_raptors.htm
677812
I've heard of attacks by mockingbirds and bluejays and have seen both of these birds swoop on other potential predators such as cats. They only do it when they feel their nest (with eggs or nestlings) is threatened. The solution is just to stay away from the nest.
139597
It depends on heat and their own weight.It is harder for large animals to cool themselves.
537748
Dolphins are most active when the herd is threatened. They will form a defensive line from attackers.
786428
I'd put my money on the hippo. Most people think they're fat, dumb, slow & cowardly, but they're actually one of the most aggressive animals in the wild-and they've got the size & weight to back it up, not to mention massive jaws & teeth.
740182
a buffalo, maybe thats why it keeps attacking me
471442
Badger. They fight anything and if a Rhinocerous get ahold of a Badger it will bite his balls off while the Rhino charging for help.