Brenna Cassidy is a wildlife biology PhD candidate at the University of Montana. She studies the survival and reproductive ecology of gray wolves. You can often find her half way u...vizualizați mai multeBrenna Cassidy is a wildlife biology PhD candidate at the University of Montana. She studies the survival and reproductive ecology of gray wolves. You can often find her half way up a snowy mountain tagging a tranquillised gray wolf so she can better study its movements. Gray Wolf (Young Zoologist) is her first book.vizualizați mai puține