Tag

Island Adaptation

All articles tagged with #island adaptation

science3 months ago

Flores Hobbits' Small Size Resulted from Slowed Childhood Growth, Study Finds

New research suggests that the small size of Homo floresiensis, or Hobbits, resulted from slowed growth during childhood rather than in utero development, challenging previous assumptions that brain size increase was the primary driver of human evolution. The study highlights how tooth and brain size relationships can provide insights into fossil species, and emphasizes that small body size on islands is an adaptive response, not a reflection of lower intelligence.

paleontology2 years ago

"Evolutionary Marvel: Ancient Elephant's Miniature Offspring Surpass Expectations"

Scientists have discovered an ancient elephant fossil on the island of Sicily, revealing the extreme evolution of the species. Over a million years, the straight-tusked elephant ancestor transformed into the Sicilian dwarf elephant, which stood at 6.5 feet tall and weighed 1.7 tons. The fossil also included a baby elephant, which was even smaller, comparable in size to a mid-sized dog. The shrinking of the elephant species occurred rapidly in evolutionary terms, highlighting the impact of island adaptation. The study provides insights into the survival of the fittest and the evolutionary pressures faced by species in different environments.