Findings also suggest that early humans may have contributed to the extinction of large ice age animals, especially as environmental changes reduced their habitats. "If the climate is changing in ...
“Other bones from these animals are either thicker or not as ... as the climate became colder toward the end of the last ice age,” he added. Gilligan said the needles discovered at the Wyoming ...
Findings also suggest that early humans may have contributed to the extinction of large ice age animals, especially as environmental changes reduced their habitats. "If the climate is changing in ...