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The American bullfrog ... Some authorities use the scientific name, ... ram's horn snails, and dytiscid beetles, as well as the aquatic eggs of fish, frogs ...
Frogs may lay their in eggs as clumps, surface films, strings, or individually. Around half of species deposit eggs in water, others lay eggs in vegetation, on the ground or in excavations. [ 136 ] [ 137 ] [ 138 ] The tiny yellow-striped pygmy eleuth ( Eleutherodactylus limbatus ) lays eggs singly, burying them in moist soil. [ 139 ]
Pickerel frog egg masses are spherical and about the same size of a wood frog egg mass—roughly 5–10 cm in diameter—although pickerel frog egg masses contain more eggs, about 2000–3000. [4] Pickerel frog eggs are multicolored: they are dark brown on top and cream colored on the bottom.
The arrival of the American bullfrog has been harmful to many native species, but Heinzman said that the northern leopard frog's populations are alarmingly low, with only one site in the State ...
Bullfrog is a common English language term to refer to large, aggressive frogs, regardless of species. ... American bullfrog (Lithobates catesbeianus), ...
Like most amphibians, water is vital for their reproduction. Because the goliath frog lacks a vocal sac, it does not produce mating calls, a behavior generally present in frogs and toads. [6] The egg masses consist of several hundred to a few thousand eggs, approximately 3.5 mm (0.14 in) each, and often attached to aquatic vegetation. [14]
"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."
Many frogs in this genus breed in early spring, although subtropical and tropical species may breed throughout the year. Males of most of the species are known to call, but a few species are thought to be voiceless. Females lay eggs in rafts or large, globular clusters, and can produce up to 20,000 at one time.