Question

Explain why entering an interglacial period resulted in an increase in biodiversity on Earth.
in small paragraph

Answer 1

When Earth entered an interglacial period, warmer temperatures and retreating ice opened vast new areas of land and coastal habitats, lengthened growing seasons, and boosted primary productivity. These changes created more and varied ecological niches, allowed species to migrate and recolonize previously glaciated regions, and reduced extinction pressure from extreme cold. Increased habitat connectivity and heterogeneity also promoted population mixing and isolation cycles that drive speciation, so overall biodiversity rose as more species could survive, spread, and diversify.