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Methods of incubation vary widely among the many different kinds of reptiles. Various species of sea turtles bury their eggs on beaches under a layer of sand that provides both protection from predators and a constant temperature for the nest. Snakes may lay eggs in communal burrows, where a large number of adults combine to keep the eggs warm ...
Temperature-dependent sex determination (TSD) is a type of environmental sex determination in which the temperatures experienced during embryonic/larval development determine the sex of the offspring. [1] It is observed in reptiles and teleost fish, with some reports of it occurring in species of shrimp.
Whale shark eggs typically hatch within the mother. At 1.5 kg (3.3 lb) and up to 17.8 cm × 14 cm (7.0 in × 5.5 in), the ostrich egg is the largest egg of any living bird, [ 2 ] : 130 though the extinct elephant bird and some non-avian dinosaurs laid larger eggs.
The temperature at which American alligator eggs develop determines their sex (see temperature-dependent sex determination). Studies have found that eggs hatched at a temperature below 88.7 °F (31.5 °C) or a temperature above 94.1 °F (34.5 °C) will produce female offspring, while those at a temperature between 90.5 and 92.3 °F (32.5 and 33 ...
The platypus has an average body temperature of about 32 °C (90 °F), lower than the 37 °C (99 °F) typical of placental mammals. [33] Research suggests this has been a gradual adaptation to harsh environmental conditions among the few marginal surviving monotreme species, rather than a general characteristic of past monotremes. [34] [35]
Most reptiles are also cold-blooded, so they’re unable to regulate their own body temperature. Instead, they rely on external heat sources like the sun or the best reptile heating pads to do so.
Marine reptiles are reptiles which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. Only about 100 of the 12,000 extant reptile species and subspecies are classed as marine reptiles, including marine iguanas, sea snakes, sea turtles and saltwater crocodiles. [1]
Similarly, climate warming that occurred millions of years ago helped reptiles evolve faster, diversify, and conquer the world, says a new study. Researchers have long believed the extinction of ...