Sea frogs for Olympus TG-6 195FT/60M Underwater Camera Waterproof Diving housing (Housing + Red Filter)

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Direct development, where eggs hatch into juveniles like small adults, is also known in many frogs, for example, Ischnocnema henselii, [143] Eleutherodactylus coqui, [144] and Raorchestes ochlandrae and Raorchestes chalazodes. [145] Tadpoles Frogspawn development Frogfish have small, round gill openings behind their pectoral fins. With the exception of Butler's frogfish and the rough anglerfish, frogfish use a gas bladder to control their buoyancy. [ citation needed] Mimicry and camouflage [ edit ] A frogfish disguised as an algae-covered stone

Kayes, Sara M.; Cramp, Rebecca L.; Franklin, Craig E. (2009). "Metabolic depression during aestivation in Cyclorana alboguttata". Comparative Biochemistry and Physiology– Part A: Molecular & Integrative Physiology. 154 (4): 557–563. doi: 10.1016/j.cbpa.2009.09.001. PMID 19737622. Some frogs protect their offspring inside their own bodies. Both male and female pouched frogs ( Assa darlingtoni) guard their eggs, which are laid on the ground. When the eggs hatch, the male lubricates his body with the jelly surrounding them and immerses himself in the egg mass. The tadpoles wriggle into skin pouches on his side, where they develop until they metamorphose into juvenile frogs. [180] 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. The tadpoles rely on the yolks of the eggs for nourishment. After six or seven weeks, they are ready for metamorphosis. The mother regurgitates the tiny frogs, which hop away from her mouth. [181] The female Darwin's frog ( Rhinoderma darwinii) from Chile lays up to 40 eggs on the ground, where they are guarded by the male. When the tadpoles are about to hatch, they are engulfed by the male, which carries them around inside his much-enlarged vocal sac. Here they are immersed in a frothy, viscous liquid that contains some nourishment to supplement what they obtain from the yolks of the eggs. They remain in the sac for seven to ten weeks before undergoing metamorphosis, after which they move into the male's mouth and emerge. [182] Defence The mildly toxic Ranitomeya imitator Strawberry poison-dart frog contains numerous alkaloids which deter predators. Frost, Darrel R. (2023). "Anura Fischer von Waldheim, 1813". Amphibian Species of the World: an Online Reference. Version 6.2. American Museum of Natural History . Retrieved 19 September 2023. a b Bertelsen, E.; Pietsch, T.W. (1998). Paxton, J.R.; Eschmeyer, W.N. (eds.). Encyclopedia of Fishes. San Diego: Academic Press. pp.138–139. ISBN 0-12-547665-5.Top 10 best jumper animals". Scienceray. Archived from the original on 2012-08-10 . Retrieved 2012-06-11.

Figure 1. Crab-eating frog ( Fejervarya cancrivora) from southeast Asia which can tolerate daily influxes of seawater. (Credit: Bernard Dupont from France – CC BY-SA 2.0, Wikimedia Commons.) Duellman, W. E. and L. Trueb (1986). Biology of Amphibians. New York: McGraw-Hill Publishing Company.toad, n.". Oxford English Dictionary (Onlineed.). Oxford University Press. (Subscription or participating institution membership required.) In certain species, such as the wood frog ( Rana sylvatica), symbiotic unicellular green algae are present in the gelatinous material. It is thought that these may benefit the developing larvae by providing them with extra oxygen through photosynthesis. [139] The interior of globular egg clusters of the wood frog has also been found to be up to 6°C (11°F) warmer than the surrounding water and this speeds up the development of the larvae. [140] The larvae developing in the eggs can detect vibrations caused by nearby predatory wasps or snakes, and will hatch early to avoid being eaten. [141] In general, the length of the egg stage depends on the species and the environmental conditions. Aquatic eggs normally hatch within one week when the capsule splits as a result of enzymes released by the developing larvae. [142] Iskandar, D. T.; Evans, B. J.; McGu