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Kitti's hog-nosed bat is small at about 29 to 33 mm (1.1 to 1.3 in) in length and 2 g (0.071 oz) in mass, [2] [3] hence the common name of "bumblebee bat". It is the smallest species of bat and may be the world's smallest mammal, depending on how size is defined.
The Kitti's hog-nosed bat, Craseonycteris thonglongyai, the smallest species of bat and the smallest mammal in the world, was found by him in 1973.He died suddenly from a massive heart attack, so the formal description was written by his British colleague, John E. Hill, who named the species in honour of its discoverer.
The most recent common ancestor of Yinpterochiroptera, corresponding to the split between Rhinolophoidea and Pteropodidae (Old World Fruit bats), is estimated to have occurred 60 million years ago. [4] The first appearance of the term Yinpterochiroptera was in 2001, in an article by Mark Springer and colleagues. [5]
The smallest bat is Kitti's hog-nosed bat (Craseonycteris thonglongyai), which is 29–34 mm (1 + 1 ⁄ 8 – 1 + 3 ⁄ 8 in) long with a 150-millimetre (6 in) wingspan and weighs 2–2.6 g (1 ⁄ 16 – 3 ⁄ 32 oz). [127] It is also arguably the smallest extant species of mammal, next to the Etruscan shrew. [128]
bumblebee bat. Genus Craseonycteris [45] Kitti's hog-nosed bat ... The Old World leaf-nosed bats. Genus Anthops [45] ... Tree bat (Ardops nichollsi)
Microbats constitute the suborder Microchiroptera within the order Chiroptera ().Bats have long been differentiated into Megachiroptera (megabats) and Microchiroptera, based on their size, the use of echolocation by the Microchiroptera and other features; molecular evidence suggests a somewhat different subdivision, as the microbats have been shown to be a paraphyletic group.
The Yangochiroptera/ Yinpterochiroptera classification remains a relatively recent proposal, which challenges the traditional view that megabats and microbats form monophyletic groups by claiming that the superfamily Rhinolophoidea is more closely related to Old World fruit bats than other microbats. [2]
Recently, there have been comparative studies of mouse and bat forelimb development to understand the genetic basis of morphological evolution. Consequently, the bat wing is a valuable evo-devo model for studying the evolution of vertebrate limb diversity. Diagram showing homologous skeletal structures of bat and mouse