This condition is also observed in caecilians
(Wake, 1970) and some anurans that have not completely lost a pelvic portion of the kidney (Bhaduri and Basu, 1957).
There are a number of reasons why frogs, toads, salamanders and wormlike caecilians
are in peril.
These primitive, worm-like caecilians
make surprisingly devoted parents.
TV firsts in the series include tiny scarlet frogs sumo wrestling, baby worm-like caecilians
feasting on their mother's skin, mother salamanders viciously defending their broods and spectacled caiman taking care of creches of up to 100 young.
In contrast, most other elongated vertebrates whose burrowing mechanics have been studied, Uropeltids, Amphisbeanians, and Caecilians
, all share the characteristics of a compact skull and specialized skull shapes for penetrating and pushing aside substrate.
There are approximately 6040 known amphibian species in the world, divided into three main general groups: frogs (5314 species), salamanders (555) and caecilians
Frogs are one type of amphibian, a group of animals that also includes toads, salamanders, and wormlike caecilians
, which are worm-like creatures, are in the Family Apoda (which means "without feet").
From one-third to one-half of the planet's 6,000 amphibian species - frogs and toads, salamanders and newts, and caecilians
, which have thrived for 360 million years - are in danger of extinction.
New Delhi, Feb 23 ( ANI ): Indian scientists have uncovered a completely new family of limbless amphibians, commonly known as caecilians
, in the forests in northeastern part of the country.
is an international team of scientists, educators, policymakers and naturalists dedicated to protecting the world's amphibian species: the frogs, toads, newts, salamanders, and caecilians
The studies consider topics such as endocrine disruptors and their effects on reproductive function, bovine perinatal mortality, the female reproductive biology of caecilians
, GnRH and other hypothalamic peptides, female sperm storage in vertebrates, assisted reproductive techniques in domestic animals, the reproduction of the Yangtze finless porpoise, and multiple ovulation and embryo transfer in dairy and beef cattle.
It features tiny scarlet frogs sumo wrestling, baby worm-like caecilians
feasting on their mother's skin, mother salamanders viciously defending their broods against marauders and spectacled caiman filmed taking care of creches of up to 100 young.
Despite the ecological and evolutionary importance of metamorphosis and complex life cycles (CLCs) in the Amphibia, simple life cycles (SLCs) and the loss of metamorphosis have evolved repeatedly in frogs, caecilians
, and salamanders.
The class Amphibia includes frogs, newts, salamanders, toads, and a group of worm-like subterranean creatures called caecilians