Yes, a bull elephant can easily kill a moose.
No bear would dare mess with, let alone kill a bull moose on the rut.
Yes, if the kodiak bear avoided the moose's hooves and antlers (if it is a bull moose). Even a grizzly bear or an alaskan brown bear could kill a bull moose, but not when it is on the rut.
Moose and crocodiles do not meet each other, but if they did, it might. Yes, if the bull moose is fighting the crocodile on land and the crocodile is not that large.
Yes, if the cow moose strikes the wolf with the hooves or knocks the wolf with its head. A cow moose protecting its young from an enemy is more fierce than a bull moose on the rut.
yes tigers may kill elephants but not usually*** Tigers will usually leave a grown elephant alone. However, if there is a baby elephant and more than one tiger, such as a mother with her half grown cub, the baby elephant may become a meal for the tigers.
That all depends on the sex, age, reproductive and health status of the moose, and the age, health of the bull as well as whether he's got horns or not. If the bull has no horns and the bull moose does (as a result of being involved in the rutting season), then the moose would win. Cow moose with calves versus polled bull, cow moose may win by driving off the bull with her flailing hooves. If she's in heat....well that's a different story. Now what if the bull does have horns? The fight would turn out a little differently, especially when a rutting bull moose is set to do battle against a horned bull. Bulls' heads are set lower to the ground than the moose and consequently may gore the moose with his horns. The bull may not be able to do this if the moose meets him full-on and they start a head-butting match. But, since a bull is often quite a bit heavier, more muscular and larger-boned than a moose, the bull would be able to push the moose around enough to make it give up and move off in defeat. If a bull moose may get its antlers at the belly of the bull, it could do a bit of damage, but probably not enough to kill him.
A crocodile and a bull moose would never meet in the wild, but even if they did fight, either may win. A saltwater crocodile would beat a bull moose in water because of its 2000 pounded weight, sharp tough skin, and enormous size with the jaws. If they fought on land, the bull moose could trample the saltwater crocodile to death, but the saltwater crocodile might be too heavy and too big for the bull moose to kill. Even though the bull moose on the rut can kill a grizzly bear or a brown bear, the saltwater crocodile could drag an alive polar bear to the water and drown it! Saltwater crocodiles are like the strongest creatures on land and water!
Moose usually Rut (or Mate) from mid to late September up until mid to late October.
It is possible, but of course this depends on the size, age and sex of the moose and the bear, and the species of the bear. A bull moose has strong, large antlers and long sharp hooves (cows only have their hooves to defend themselves with) that could do serious damage to the bear. Most bears, no matter the species, won't mess with an animal that can fight back, especially a moose. However, a bear like a large grizzly or Alaskan brown bear might be able to injure a moose if it was really angry, or large and fearless enough to put up a good fight against such a raging herbivore. A bear would have to claw and bite it's way out of a fight with a moose, but Lord help them if that moose is an angry bull on the rut with those powerful antlers. But as far as a moose being able to kill a bear, such cases may be rare because often either party would wish to run away to save themselves rather than getting killed.
The moose, especially if the moose is a bull moose on the rut, would knock out the two men easily if the two men do not run away fast. Moose are standing quite taller than a human and can even send a grizzly bear flying. Even if the two men had knives or clubs, the moose (if the moose was a bull moose) would gore the two men with its large antlers to death and tear them out.
The rut in many species is triggered by a shortening of the length of daylight hours.
Possibly three. Saltwater crocodiles would have difficulties with rhinos since a rhino has tough skin and heavy weight advantage. A saltwater crocodile sometimes would kill and eat young rhinos, but would not kill an adult rhino. A rhino on the rut is far more dangerous than an attacking saltwater crocodile, and could even kill a bull elephant.