dinofreak337

May 15 2012, 06:41 PM

would it be possible for a big enough allosaur to headbutt a rhino hard enough to make it fall to the ground? if so wouldn't that be the end of the battle the allo would go in for the final bite(s) and kill the rhino? would it be possible? sorry if i sound like an absolute idiot

Swarmlord2012

May 14 2012, 09:40 PM

It really depends on where they're fighting, if it's open, I'd say the dromaeosaur would win very often, but if it has to stay in front of the bird, it's dead.

Rai'Drik

May 14 2012, 12:04 AM

Shark

One bite to the neck or head would crush the seal's skull or back

FireEel

May 14 2012, 12:46 PM

titanoceratops

May 14 2012, 08:19 AM

"rhinos get killed by predators substantially smaller then a Allosaurus"

Such as?

Not a white rhino, but tigers have been known to kill Indian rhinos by themselves on very rare occasions.

coherentsheaf

May 13 2012, 02:52 AM

The 17 metre estimate by henry was based on a vertebra that could have been a caudal vertebra of a cetiosaur. I think occams razor suggests the latter.

Grey

May 13 2012, 03:00 AM

Scientists are apparently confident into the new 9 tons estimate for Sue. But they say it may be applied to other predatory species as well.

T-Rex was thus likely heavier but same for Carcharodontosaurids and others.

However, as for the size discuss, don't forget that even for T-Rex there are possibilities of larger individuals than the officially larger Sue.

That's not the point here though. Allosaurs would be more dangerous to humans than Rex because of their physiology and lifestyle.

Quote:

 

Saurophaganax was one of the largest carnivores of Late Jurassic North America. Ray even gave an estimate of the body length of fifteen metres and Chure of fourteen, though later estimations have been lower.

Lycaon

May 10 2012, 04:17 AM

theropod

May 10 2012, 03:39 AM

Jaguars can take on animals much larger then themselves (e.g. large anakondas and caimans, even in water).
imo a jaguar will be more than a match for epicyon. they are incredibly strong, their bite is stong enough to crush turtles and they are the only cats that regularly kill by biting into their prey´s head.
Really hard fight. It would probably be 50/50 due to the dogs weight advantage, but remember, the jaguar doesn´t have a problem defeating Caimans, even in water.

at max weight I don't give the jaguar much of a chance at all.
There can only be a real fight if the animals are both similar in size.

The reptiles the jaguar hunts may be impressive, but are nothing compared to a larger member of carnivora like Epicyon

size comparison

Quote:

 

Physical characteristics
The head of the jaguar is robust and the jaw extremely powerful. The size of jaguars tends to increase the farther south they are located.

The jaguar is a compact and well-muscled animal. Size and weight vary considerably: weights are normally in the range of 56–96 kilograms (124–211 lb). Larger males have been recorded to weigh as much as 160 kg (350 lb)[26] (roughly matching a tigress or lioness), and the smallest females have low weights of 36 kg (79 lb). Females are typically 10–20% smaller than males. The length of the cats varies from 1.2 to 1.95 m (3.9 to 6.4 ft), and their tails may add a further 45 to 75 cm (18 to 30 in).[27][28] It stands 63 to 76 cm (25 to 30 in) tall at the shoulders.[29] Like the slightly smaller Old World leopard, this cat is relatively short and stocky in build.[20]

Further variations in size have been observed across regions and habitats, with size tending to increase from the north to south. A study of the jaguar in the Chamela-Cuixmala Biosphere Reserve on the Mexican Pacific coast, showed ranges of just about 50 kilograms (110 lb), about the size of the cougar.[30] By contrast, a study of the jaguar in the Brazilian Pantanal region found average weights of 100 kilograms (220 lb), and weights of 136 kilograms (300 lb) or more are not uncommon in old males.[31] Forest jaguars are frequently darker and considerably smaller than those found in open areas (the Pantanal is an open wetland basin), possibly due to the smaller numbers of large, herbivorous prey in forest areas.[32]

A short and stocky limb structure makes the jaguar adept at climbing, crawling and swimming.[29] The head is robust and the jaw extremely powerful. The jaguar has the strongest bite of all felids, capable of biting down with 2,000 pounds-force (8,900 N). This is twice the strength of a lion and the second strongest of all mammals after the spotted hyena; this strength adaptation allows the jaguar to pierce turtle shells.[4] A comparative study of bite force adjusted for body size ranked it as the top felid, alongside the clouded leopard and ahead of the lion and tiger.[33] It has been reported that "an individual jaguar can drag a 360 kg (800 lb) bull 8 m (25 ft) in its jaws and pulverize the heaviest bones".[34] The jaguar hunts wild animals weighing up to 300 kilograms (660 lb) in dense jungle, and its short and sturdy physique is thus an adaptation to its prey and environment. The base coat of the jaguar is generally a tawny yellow, but can range to reddish-brown and black, for most of the body. However the ventral areas are white.[29] The cat is covered in rosettes for camouflage in the dappled light of its forest habitat. The spots vary over individual coats and between individual jaguars: rosettes may include one or several dots, and the shapes of the dots vary. The spots on the head and neck are generally solid, as are those on the tail, where they may merge to form a band.

While the jaguar closely resembles the leopard, it is sturdier and heavier, and the two animals can be distinguished by their rosettes: the rosettes on a jaguar's coat are larger, fewer in number, usually darker, and have thicker lines and small spots in the middle that the leopard lacks. Jaguars also have rounder heads and shorter, stockier limbs compared to leopards.[35]

MightyKharza

May 11 2012, 03:50 AM

Cave hyenas and short-faced bears have both been listed as reasons why humans colonised North America only after having colonised South America. If true, this is a huge deal: these predators were so dangerous, people actually went through the trouble of crossing an ocean to reach South America rather than risk walking through the Bering Land Bridge.