Hippopotamuses live in herds of 20 to 30. They are not aggressive, but are dangerous fighters if frightened or attacked.
yes they are very aggresive.
Most hippos respond to stimuli in an aggressive manner. Hippos are known for their aggression toward people and have even been known to attack crocodiles.
by jiggling
it's the law of the jungle. eat or be eaten. kill or be killed
Depends how old they are.
When hippos feel threatened, their behavior is extremely aggressive.
Captive pygmy hippos can be occasionally aggressive, and their sharp teeth enable them to deliver severe bites, comparable to the wounds that can be inflicted by a tapir. Hans Schomburg, one of the first Europeans to capture pygmy hippos in Liberia, described how one of his captive hippos, a relatively young female, attacked him when he entered its corral. Had he not been able to divert the animal's attention with a sack of green food (which the hippo promptly teared to pieces), he would have been seriously injured. Another captive animal, a big male, also attacked him on a few occasions when he entered the corral, but in general behaved less aggressively than the aforesaid female. Wild pygmy hippos practically never attack humans unless they are wounded by hunters and unable to flee. Their common reaction to danger is to flee, and, unlike big hippos, they do not defend their territory against human intruders.
Male hippos are about 12 or 13 ft long. Female hippos are 10 ft long.
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An "aggressive."
If there is another female around she can get domanate of her surroundings. A female pit in heat can be aggressive and even more so if she has has a litter recently.
The San Diego Zoo has two River hippos: Kunani (female:25 years old) and Otis (male:35 years old) and two pygmy hippos: Franchesca (female:18 years old) and Algon (male:6 years old)
Hippos do not eat us, although an aggressive bull hippo will sometimes kill humans, but not for food.