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Most notably, American conspiracy theorist Alex Jones cited research on the effects of atrazine on frogs, which can induce spontaneous sex change or hermaphroditism, claiming that the federal government of the United States was "putting chemicals in the water that turn the friggin’ frogs gay" as part of a "chemical warfare operation" or "gay ...
The gray treefrog (Dryophytes versicolor) is a species of small arboreal holarctic tree frog native to much of the eastern United States and southeastern Canada. [2] It is sometimes referred to as the eastern gray treefrog, northern gray treefrog, [3] common gray treefrog, or tetraploid gray treefrog to distinguish it from its more southern ...
Tyrone Hayes. Tyrone B. Hayes (born July 29, 1967) is an American biologist and professor of integrative biology at the University of California, Berkeley. He is known for his research in frogs, concluding that the herbicide atrazine is an endocrine disruptor that demasculinizes male frogs, causing them to display female characteristics.
Male Rana temporaria calling in a garden pond in Jambes, Belgium. The common frog or grass frog (Rana temporaria), also known as the European common frog, European common brown frog, European grass frog, European Holarctic true frog, European pond frog or European brown frog, is a semi-aquatic amphibian of the family Ranidae, found throughout much of Europe as far north as Scandinavia and as ...
Pipa americana Laurenti, 1768. The common Surinam toad, the Suriname toad, or star-fingered toad (Pipa pipa), is a fully-aquatic species of frog, in the family Pipidae, with a widespread range across much of tropical South America and the island of Trinidad. [2] The females of this species are well-known for "incubating" their eggs on their ...
Male Dendropsophus microcephalus calling. Sexual selection in amphibians involves sexual selection processes in amphibians, including frogs, salamanders and newts.Prolonged breeders, the majority of frog species, have breeding seasons at regular intervals where male-male competition occurs with males arriving at the waters edge first in large number and producing a wide range of vocalizations ...
The Brothers Grimm fairy tale The Frog Prince features a princess taking in a frog and it turning into a handsome prince. [235] In modern culture, frogs may take a comedic or hapless role, such as Mr. Toad of the 1908 novel The Wind in the Willows , Michigan J. Frog of Warner Bros. Cartoons , the Muppet Kermit the Frog and in the game Frogger .
Sequential hermaphroditism (called dichogamy in botany) is one of the two types of hermaphroditism, the other type being simultaneous hermaphroditism. It occurs when the organism's sex changes at some point in its life. [ 1 ] A sequential hermaphrodite produces eggs (female gametes) and sperm (male gametes) at different stages in life. [ 2 ]