MEXICO CITY - Scientists have documented the first-known instance of a 'virgin birth' by a crocodile, which had been living in isolation for 16 years at Costa Rican zoo, according to a study published Wednesday (June 7). The female American crocodile laid 14 eggs in 2018 within her enclosure, a not uncommon phenomenon among captive reptiles. The more puzzling fact,...
MEXICO CITY - Scientists have documented the first-known instance of a "virgin birth" by a crocodile, which had been living in isolation for 16 years at Costa Rican zoo, according to a study published Wednesday .
According to the study published in the journal Biology Letters, scientists tested the crocodile foetus' genetic makeup. They found DNA sequences showing it was a result of facultative parthenogenesis , or reproduction without the genetic contribution of males. Then, one of those cells essentially acts as a sperm cell and fuses with the egg to become "fertilised".
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