Home > Terms > English, UK (UE) > Placental mammal

Placental mammal

The infraclass of therian mammal species in which females produce a placenta to connect the foetus to the uterus. This enables nutrients and oxygen to get to the foetus and provides a means of eliminating waste products. As a result, placental mammal or eutherian mammals can carry their young within the uterus until late in foetal development. This has a selective advantage because it results in decreased infant mortality. Included in this infraclass are dogs, cats, bears, whales, monkeys, humans, and many other mammals.

This is auto-generated content. You can help to improve it.
0
Improve it
More
Collect to Blossary

Other Languages:

More

Member comments

You have to log in to post to discussions.

Related terms

placental mammals
Archaeology; Evolution

A group (specifically, an order) of mammals in which the young develop inside the mother, attached to her and nourished by a specialized structure called the placenta. In ...

placental mammals
Anthropology; Cultural anthropology

Members of the infraclass eutheria of the class mammalia; mammals that form a placenta.

placental mammal
Anthropology; Physical anthropology

The infraclass of therian mammal species in which females produce a placenta to connect the fetus to the uterus. This enables nutrients and oxygen to get to the fetus and provides ...

placental mammals
Biology; General

One of three groups of mammals that carry their young in the mother's body for long periods during which the fetus is nourished by the placenta. Humans are placental mammals.

mammal
Biology; Neuroscience

An animal the embyros of which develop in a uterus and the young of which begin to suckle at birth (technically, a member of the class Mammalia).

mammal
Animals; Mammals

A warm-blooded animal whose young feed on milk that is produced by mother's mammary glands.

malnourishment
Anthropology; Physical anthropology

An inadequacy or an excess of some key element(s) in the diet, such as proteins, fats, or specific minerals and vitamins. See undernourishment and overnourishment.

cataract
Anthropology; Physical anthropology

An impairment of vision caused by the lenses of the eyes becoming cloudy. Cataracts are common in elderly people. They may be inherited or caused by diabetes and environmental ...

oöcyte
Anthropology; Physical anthropology

An immature female sex cell. These egg precursor cells, or primary oöcytes, are produced before birth. They become secondary oöcytes usually one by one after puberty when hormones ...

chronic disease
Anthropology; Physical anthropology

An illness that lasts for a long period of time or indefinitely. In contrast, an acute disease is one with a rapid onset and a short but usually severe course.

microcephaly
Anthropology; Physical anthropology

An extremely rare genetically inherited condition in which babies are born with extremely small brains and heads. This fatal condition has been found only among the children of 23 ...

oxidizable carbon ratio (OCR) dating
Anthropology; Physical anthropology

An experimental dating technique based on the fact that organic carbon in soil humus and charcoal progressively convert to oxidizable carbon over time. The ratios of these two ...

Terms in the News

Featured Terms

Harry8L
  • 0

    Terms

  • 0

    Blossaries

  • 1

    Followers

Industry/Domain: Law enforcement Category: Crime & punishment

victim blaming

When the victim of a crime is told that they are in some way responsible for their situation. This generally happens very subtly, to the point where ...

Contributor

Featured blossaries

Chinese Tea

Category: Culture   3 22 Terms

Liturgy

Category: Religion   1 17 Terms

Browers Terms By Category

TERMS

SOCIAL

EXTRAS

SOLUTIONS