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Rheobatrachus, whose members are known as the gastric-brooding frogs or platypus frogs, is a genus of extinct ground-dwelling frogs native to Queensland in eastern Australia. The genus consisted of only two species, the southern and northern gastric-brooding frogs, both of which became extinct in the mid-1980s.
The call was loud, consisting of several staccato notes. It was similar to the southern gastric-brooding frog's call although deeper, shorter and repeated less often. The northern gastric-brooding frog was observed feeding on caddisfly larvae and terrestrial and aquatic beetles as well as the Eungella torrent frog (Taudactylus eungellensis). [6]
In 1976, the Southern gastric-brooding frog's population was estimated at 78 individuals in the Booloumba Creek and Conondale Range regions. [4] The Southern gastric-brooding frog suffered from population decline after the winter of 1979. [4] The last recording of the frog in the wild was 1981. [4] In 1983, the last known captive specimen died. [4]
The world's largest frog is the goliath frog of West Africa—it can grow to 15 inches (38 centimeters) and weigh up to 7 pounds (3.2 kilograms). One of the smallest is the Cuban tree toad, which ...
For example, the female gastric-brooding frog (Rheobatrachus sp.) from Australia, now probably extinct, swallows her fertilized eggs, which then develop inside her stomach. She ceases to feed and stops secreting stomach acid and the tadpoles rely on the yolks of the eggs for nourishment.
In the frog Rhinoderma darwinii, the zygotes develop in the vocal sac. In the recently extinct frogs Rheobatrachus , zygotes developed in the stomach. Histotrophic viviparity: the zygotes develop in the female's oviducts , but find their nutriments from other tissues, whether skin or glandular tissue, oophagy or adelphophagy ( intra-uterine ...
Gastric-brooding frog – An entire genus of ground frogs that were native to Queensland, Australia. They became extinct in the mid-1980s primarily due to Chytridiomycosis. In 2013, scientists in Australia successfully created a living embryo from non-living preserved genetic material, and hope that by using somatic-cell nuclear transfer ...
Ovoviviparity, ovovivipary, ovivipary, or aplacental viviparity is a term used as a "bridging" form of reproduction between egg-laying oviparous and live-bearing viviparous reproduction. Ovoviviparous animals possess embryos that develop inside eggs that remain in the mother's body until they are ready to hatch.