Is sudden cardiac arrest the same as a heart attack? No. A heart attack (or a myocardial infarction) occurs when part of the heartâs blood supply is reduced or blocked, causing the heart muscle to become injured or die.
The primates are a group of mammals that includes some of the most intelligent animals. The major kinds of primates are humans, apes, monkeys, tarsiers, lemurs, and lorises. There are more than 300 species, or types, of primate. These different types have many physical features in common.For this reason scientists believe that they may share a common ancestor.he primates are a group of mammals that includes some of the most intelligent animals. The major kinds of primates are humans, apes, monkeys, tarsiers, lemurs, and lorises. There are more than 300 species, or types, of primate. These different types have many physical features in common.
Monkeys are haplorhine (dry-nosed) primates, a paraphyletic group generally possessing tails and consisting of approximately 260 known living species. Many monkey species are tree-dwelling (arboreal), although there are species that live primarily on the ground, such as baboons.Most species are also active during the day (diurnal). Monkeys are generally considered to be intelligent, particularly Old World monkeys.oeldi's marmoset (Callimico goeldii). Monkeys range in size from the pygmy marmoset, which can be as small as 117 millimetres (4.6 in) with a 172-millimetre (6.8 in) tail and just over 100 grams (3.5 oz) in weight, to the male mandrill, almost 1 metre (3.3 ft) long and weighing up to 36 kilograms (79 lb).