Geochelone Tortoises, which are also known as geoclelone tortoises or typical tortoises, can be found in Africa, America, Asia, and several Oceanic islands. They primarily eat plants, specifically dark greens. Measured by the length of their shell, the species in this genus are some of the largest turtles in the world, especially the Galápagos tortoise (G. nigra), which can get as long as 6 feet (1.80 meters). The genus consists of the following 12 species:
A recent comparative genetic analysis has indicated that this taxon is "polyphyletic, representing at least four independent clades". South American members of Geochelone are actually most closely related to African hingeback tortoises.
Incubation temperature effects on hatchling growth and metabolic rate in the African spurred tortoise, Geochelone sulcata.(Report)
Jan 01, 2009; Introduction Offspring phenotype is determined by genotype, maternal investment, and environment. Whereas genotype is fixed at...