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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 in total. Animals range in size from 8.5 millionths of a metre to 33.6 metres (110 ft) long and have complex interactions with each other and their environments, forming intricate food webs .
More than 99 percent of all species, amounting to over five billion species, [7] that ever lived on Earth are estimated to be extinct. [8] [9] Estimates on the number of Earth's current species range from 10 million to 14 million, [10] of which about 1.2 million have been documented and over 86 percent have not yet been described. [11]
In zoology, megafauna (from Greek μέγας megas "large" and Neo-Latin fauna "animal life") are large animals. The most common thresholds to be a megafauna are weighing over 46 kilograms (100 lb) [2] [3] [4] (i.e., having a mass comparable to or larger than a human) or weighing over a tonne, 1,000 kilograms (2,205 lb) [2] [5] [6] (i.e ...
Oct. 4 is World Animal Day, so we want to introduce you to the official animals of Texas. Do you think you could guess them all?
Lists of animal species (1 C, 87 P) V. ... List of animal names; List of nematode families; List of New World barbets; List of nocturnal animals;
Goodman, S.M. & Ranivo, J. 2009. The geographical origin of the type specimens ofTriaenops rufusandT.humbloti(Chiroptera: Hipposideridae) reputed to be from Madagascar and the description of a replacement species name. Mammalia 73:47–55. Triaenops parvus: Chiroptera Benda & Vallo 2009 Yemen Benda, P. & Vallo, P. 2009.
Its name means "a rod from the Mediterranean Sea", "glycyrrhizin-dissolving". [32] Ornithogalum adseptentrionesvergentulum (U.Müll.-Doblies & D.Müll.-Doblies) - family Asparagaceae. This monocot from the Great Karoo desert of South Africa is one of the world's most miniature bulb species (under 3 cm tall) and yet it has the longest valid ...
List of extinct animals of Romania; List of fossil species in the La Brea Tar Pits, California, United States; List of fossil species in the London Clay, England; List of White Sea biota species by phylum, Russia; Paleobiota of the Hell Creek Formation, northern United States; Paleobiota of the Morrison Formation, western United States