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Hace 1 día · From left to right: a polar bear (Ursus maritimus), a giraffe (Giraffa camelopardalis), †Paraceratherium transouralicum, †Patagotitan mayorum, two humans (Homo sapiens), †Palaeoloxodon recki, an African bush elephant (Loxodonta africana) and a white rhino (Ceratotherium simum). The largest prehistoric animals include both vertebrate and invertebrate species.
13 de jun. de 2024 · The egg stage lasts from a few days to 3 weeks; the larval phase lasts at least a year, 2‒3 yrs in most species (up to 6 under experimental conditions). The number of larval instars varies around 10–11, up to 15 or more. The prepupal stage lasts a few days.
Hace 5 días · Wish I had dreamt about dragonflies more. Anyways, this week’s dragonfly is Meganeura monyi. It’s not really a dragonfly, but it is a Carboniferous fossil related to the dragonfly. It has no common name, so call it whatever you think is best (or coolest). It had a wingspan of 65–75 cm (2.13–2.46 ft).
26 de jun. de 2024 · En este artículo, vamos a echar un vistazo fascinante al pasado y descubrir qué es el insecto más grande del mundo que ha habitado la Tierra. No hay que ser un entomólogo para sentir curiosidad por los seres vivos que han estado presentes en nuestra planeta durante millones de años.
Hace 4 días · The primitive wingless insects gave rise to paleopterous and neopterous stock fossil types. Ten insect orders are known as fossils, mostly of Late Carboniferous and Permian times. Insect wings develop as paired outgrowths from the thorax, stiffened by ribs, or veins, in which run tracheae.
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Hace 1 día · With wingspans up to 27 inches, Meganeura is one of the largest flying insects known. It adapted to open habitats and had spiny legs for catching prey. Smilodon CoreyFord/Getty. Smilodon, commonly known as the saber-toothed tiger, is a well-known carnivore from the Late Pleistocene. Despite its name, it was not closely related to modern tigers.
