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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 loss of some tadpoles in the metamorphosis from tadpole to frog is a unique feature of R. darwinii. This observation is likely explained by these hypotheses: The tadpoles that did not survive were converted into nutrition for the foster male and he digested them. [13] The tadpoles died in the vocal sac of the foster male.
The tadpoles then swim out into the open water and rapidly complete their development. [121] Madagascan burrowing frogs are less fossorial and mostly bury themselves in leaf litter. One of these, the green burrowing frog ( Scaphiophryne marmorata ), has a flattened head with a short snout and well-developed metatarsal tubercles on its hind feet ...
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]
"Fewer than a dozen of the 6455 species of frogs in the world are known to have internal fertilization, and of these, all but the new species either deposit fertilized eggs or give birth to froglets."
What the Cast of ‘Monsters’ Looks Like IRL Netflix Ryan Murphy is back on Netflix with the latest edition of his Monsters series, and season 2 dives deep into the case of the Menendez brothers ...
The coverings over the eggs will remain in the wild until the brood emerges. [15] The embryos develop through to the tadpole stage inside these pockets but do not emerge as tadpoles, instead remaining in their chambers until complete development to toadlet stage. The young toads grow a tail during their growth, but these will only be temporary ...
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