USA TODAY |
Global warming shrank animals in the past. Scientists say it could happen again.
USA TODAY WASHINGTON — Global warming shrank certain animals in the ancient past, and scientists worry it could happen again. Warm-blooded animals got smaller at least twice in Earth’s history when carbon dioxide levels soared and temperatures spiked as part of … Scientists floored by massive discovery about global warming Huge global warming discovery shocks scientists Pattern of mammal dwarfing during global warming |