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Tardigrades have barrel-shaped bodies with four pairs of stubby legs. Most range from 0.3 to 0.5 mm (0.012 to 0.020 in) in length, although the largest species may reach 1.2 mm (0.047 in). [ 10 ] The body consists of a head, three body segments each with a pair of legs, and a caudal segment with a fourth pair of legs.
The smallest penguin species is the little blue penguin (Eudyptula minor), which stands around 30–33 cm (12–13 in) tall and weighs 1.2–1.3 kg (2.6–2.9 lb). [68] The smallest bird of prey is the Black-thighed falconet (Microhierax fringillarius), with a wingspan of 27–32 centimetres (11–13 in), roughly the size of a sparrow. [69]
Etruscan shrew. The Etruscan shrew (Suncus etruscus), also known as the Etruscan pygmy shrew, white-toothed pygmy shrew and Savi's pygmy shrew, is the smallest known extant mammal by mass, weighing only about 1.8 g (0.063 oz) on average. [3][4][5][6][7][8] (The bumblebee bat is regarded as the smallest mammal by skull size and body length. [3 ...
Paedophryne amauensis, also known as the New Guinea Amau frog, is a species of microhylid frog endemic to eastern Papua New Guinea. [2][4] At 7.7 mm (0.30 in) in snout-to-vent length, it is considered the world's smallest known vertebrate. [3][5] The species was listed in the Top 10 New Species 2013 by the International Institute for Species ...
Pikas are small mammals, with short limbs and rounded ears. They are about 15 to 23 cm (5.9 to 9.1 in) in body length and weigh between 120 and 350 g (4.2 and 12.3 oz), depending on species. These animals are herbivores and feed on a wide variety of plant matter, including forbs, grasses, sedges, shrub twigs, moss and lichens.
An easily frightened animal, the deer barks when in fear. [13] [21] Its fur bristles and the pudú shivers when angered. [13] Predators of the pudús include the horned owl, Andean fox, Magellan fox, cougar, and other small cats. The pudú is a wary animal that moves slowly and stops often, smelling the air for scents of predators.
The royal antelope (Neotragus pygmaeus) is a West African antelope recognized as the world's smallest. It was first described by Swedish zoologist Carl Linnaeus in 1758. It stands up to merely 25 cm (10 in) at the shoulder and weighs 2.5–3 kg (5.5–6.6 lb). A characteristic feature is the long and slender legs, with the hindlegs twice as ...
The American pygmy shrew is the smallest mammal native to North America and is one of the smallest mammals in the world, just slightly larger than the Etruscan shrew of Eurasia. Its body is about 5 cm (2 in) long including a 2-cm-long tail, and it weighs about 2.0 to 4.5 g (0.07 to 0.16 oz). [9] Its pelage is generally a reddish or grayish ...