Even identical twins with the same genes can differ in ha... | funfact.wiki | funfact.wiki
Even identical twins with the same genes can differ in handedness: one may be left-handed and the other right-handed. Such discordance in twin studies shows that although genes influence handedness, they do not determine it alone.
Some twins spontaneously create a unique language only they understand, a phenomenon called cryptophasia. The most famous case is June and Jennifer Gibbons, the 'Silent Twins,' whose language was so distinct that even their parents could not comprehend it.
Dogs and wolves differ by just 0.04% genetically. Part of this difference includes variations linked to Williams syndrome in humans — a condition causing extreme sociability and no hostility toward strangers. Some scientists suggest dogs may essentially be wolves with Williams syndrome.
Between 1–4% of modern human genes came from Neanderthals. These include the SLC16A11 gene linked to obesity and diabetes, as well as hair loss genes. The Khoisan people of southern Africa, who had no contact with Neanderthals, carry almost none of these genes.
In mammal births, a round lump of flesh covered in skin and fur sometimes appears, called 'amorphous globosus.' It is a twin that failed to develop and survives by parasitizing the other's blood. In cattle, it occurs about once in every 3,500 pregnancies.
Corn's ancestor is teosinte, a plant resembling foxtail grass with almost nothing edible. Humans spent centuries on selective breeding, picking the best mutations, to create modern corn. Today, a single corn kernel has more nutrition than an entire ear of ancient teosinte.