Large Galapagos tortoises are ecosystem engineers Sciences
A captive breeding program has seen the return of Galapagos big tortoises to Espanola within the Galapagos Islands. Because the turtle inhabitants rebounds, the island’s ecosystem is reworking. Photographs by Steve Blum/Alamy Footage Within the late nineteenth century, whalers, settlers, and pirates altered the ecology of the Galapagos Islands by poaching some native species—equivalent to…