From poison frogs to worm-like caecilians, some amphibians are hardworking and surprisingly creative caregivers.
This article was originally featured on Knowable Magazine. Most amphibians aren’t exactly doting parents—they just find a partner and release as many eggs or sperm as possible, in hopes that viable larvae will hatch from at least some fertilized eggs, and at least some of those larvae will survive to adulthood. Yet in as many as one in five amphibian species, one or both parents stick around to care for their offspring, using a staggering variety of strategies.
via Knowable Magazine Work together Depending on the species, amphibian parental care is provided by father, mother or both. The evolved strategy is linked to the way that a species reproduces. Salamanders and newts are an interesting group to illustrate the importance of this, says evolutionary biologist Balázs Vági of the University of Debrecen in Hungary, who has done a number of studies comparing parenting styles across amphibians to understand how they may have come about.
via Knowable Magazine Why not invite them in? Even stranger, perhaps, are a number of caecilian species, such as the Rio Cauca caecilian , as well as a few salamanders, in which eggs hatch within the female. In some caecilians, the young then feed on cells or secretions from a nutritious structure in her oviduct. Such an arrangement has not been found in other amphibian groups, though a number of species are viviparous, with live young emerging from the reproductive tract.
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