His PhD is in biochemistry and statistics. Identical twins have the same genes or DNA. They are nurtured in equal prenatal conditions. If homosexuality is caused by genetics or prenatal conditions and one twin is gay, the co-twin should also be gay.y Mark Ellis. Dr. Neil Whitehead. Eight major studies of identical twins in Australia, the U.S., and Scandinavia during the last two decades all arrive at the same conclusion: gays were not born that way. âAt best genetics is a minor factor,â says Dr. Neil Whitehead, PhD.
Sloth bear range. The sloth bear is found on the Indian subcontinent in Nepal, Bhutan, Bangladesh, India and Sri Lanka. Two separate subspecies are recognised: the Sri Lankan sloth bear Melursus ursinus inornatus and the Indian sloth bear M. u. ursinus . More Â».
The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South American rain forest home. Sloths are identified by the number of long, prominent claws that they have on each front foot.There are both two-toed and three-toed sloths. All sloths are built for life in the treetops. They spend nearly all of their time aloft, hanging from branches with a powerful grip aided by their long claws.ecause of this cry these sloths are sometimes called ais (pronounced eyes). Three-toed sloths also have an advantage that few other mammals possess: They have extra neck vertebrae that allows them to turn their heads some 270 degrees.