Tag

Interbreeding

All articles tagged with #interbreeding

Neanderthals fell to a mosaic of factors, not a single foe
archaeology11 days ago

Neanderthals fell to a mosaic of factors, not a single foe

Extinction of Neanderthals appears to be the result of a mix of regional pressures: small, isolated populations prone to inbreeding and mutational burden, competition with expanding modern humans, and varied demographic dynamics across Eurasia. Genetic evidence confirms interbreeding with Homo sapiens, meaning Neanderthals contributed to the modern human genome, but there is no single smoking gun or uniform fate—different Neanderthal groups disappeared for different reasons over time.

Ancient Denisovan Interbreeding Influenced Modern Humans
science6 months ago

Ancient Denisovan Interbreeding Influenced Modern Humans

Research indicates that interbreeding between Denisovans and early modern humans contributed to the genetic makeup of present-day humans, with evidence of multiple interbreeding events and Denisovan-derived genes providing survival advantages in various environments. Future studies aim to uncover more about Denisovan influence through genetic and archaeological research.

Revealing the Origins of Human-Neanderthal Interactions
science8 months ago

Revealing the Origins of Human-Neanderthal Interactions

Scientists have identified the Zagros Mountains in Iran, northern Iraq, and southeastern Turkey as the likely location where Homo sapiens and Neanderthals interbred during the Late Pleistocene, supported by archaeological and genetic evidence. This interbreeding contributed 1-4% of Neanderthal DNA to non-African humans today, influencing various physical traits and health aspects.

Bizarre Sea Creature Survives and Reproduces Despite Odd Traits
science9 months ago

Bizarre Sea Creature Survives and Reproduces Despite Odd Traits

In 1985, a rare hybrid marine mammal called Kekaimalu was born from a bottlenose dolphin and a false killer whale at Sea Life Park in Hawaii. She exhibited traits of both species and was able to reproduce, producing a surviving calf in 2004, which is unusual for interspecies hybrids. The case provides insights into hybrid genetics and the effects of captivity on interspecies breeding, although such hybrids are not observed in the wild.

Ancient DNA Unveils Human-Neanderthal Interbreeding Timeline
science1 year ago

Ancient DNA Unveils Human-Neanderthal Interbreeding Timeline

New research has refined the timeline of interbreeding between modern humans and Neanderthals, indicating it began around 50,500 years ago and lasted for about 7,000 years. This gene flow left non-African populations with 1-2% Neanderthal ancestry, contributing beneficial traits like immune resilience and skin pigmentation. The study also identified "Neanderthal deserts" in human genomes, areas devoid of Neanderthal genes likely due to lethal gene variants, enhancing our understanding of human adaptation and migration.