Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from 8.5 micrometres to 33.6 metres. They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan.
关于Animal
A group of friends find themselves terrorized by a beast while on a hiking trip in the woods. As the body count rises, the group must put their differences aside and fight for survival.
Animal的成就
The film was shot in Manchester, Connecticut.
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Animal attacks - Animal attacks are a cause of human injuries and fatalities worldwide. Up to five million people in the U.S. are attacked by cats and dogs each year. The frequency of animal attacks varies with geographical location.. Animal coloration - Animal coloration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see.. Ethology - Ethology is the scientific study of animal behaviour, usually with a focus on behaviour under natural conditions, and viewing behaviour as an evolutionarily adaptive trait.. Fauna - Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is flora. Flora, fauna and other forms of life such as fungi are collectively referred to as biota.. Lists of organisms by population - This is a collection of lists of organisms by their population. While most of the numbers are estimates, they have been made by the experts in their fields. Species population is a science falling under the purview of population ecology and biogeography.. Kingdoms (biology).. Animals.
