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The behavior of an amphibian hatchling, commonly referred to as a tadpole, is controlled by a few thousand neurons. [4] 99% of a Xenopus hatchling's first day after hatching is spent hanging from a thread of mucus secreted from near its mouth will eventually form; if it becomes detached from this thread, it will swim back and become reattached, usually within ten seconds. [4]
A tadpole or polliwog (also spelled pollywog) is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found in adult amphibians, such as a lateral line, gills and swimming tails.
The head of T. longicaudatus bears a pair of dorsal compound eyes that lie close to each other and are nearly fused together. The compound eyes are generally sessile (not stalked). In addition, there is a naupliar ocellus (the "third eye") between them. The compound eyes are on the surface of the head, but the ocellus is deep within the head.
Eggs can hatch in under 30 hours and tadpoles can fully develop in one month. [13] They have wide caudal fins and two rows of labial teeth on the top of their mouths and four rows on the bottom. [14] Tadpoles survive on algae and will occasionally eat other tadpoles, [13] and on rare occasions, recently metamorphosed juveniles. [15]
A tadpole person [1] [2] [3] or headfooter [4] [5] is a simplistic representation of a human being as a figure without a torso, with arms and legs attached to the head. Tadpole people appear in young children's drawings before they learn to draw torsos and move on to more realistic depictions such as stick figures .
Triops longicaudatus (commonly called American tadpole shrimp or longtail tadpole shrimp) is a freshwater crustacean of the order Notostraca, resembling a miniature horseshoe crab. It is characterized by an elongated, segmented body, a flattened shield-like brownish carapace covering two thirds of the thorax, and two long filaments on the abdomen.
Members of the Branchiopoda are unified by the presence of gills on many of the animals' appendages, including some of the mouthparts.This is also responsible for the name of the group [1] (from the Ancient Greek: βράγχια, gills, akin to βρόγχος, windpipe; Greek: πούς, foot). [2]
Wikisource has original text related to this article: End Poem (full text) The end credits of the video game Minecraft include a written work by the Irish writer Julian Gough, conventionally called the End Poem, which is the only narrative text in the mostly unstructured sandbox game. Minecraft's creator Markus "Notch" Persson did not have an ending to the game up until a month before launch ...