Zoologists were taken by surprise when they first spotted hyena and wolf footprints together. Direct observations later confirmed their suspicion.
Zimbabwe's minister of the environment has demanded the United States extradite Walter Palmer, the man accused of killing Cecil the Lion, while the U.S. Fish and Wildlife Service says it has been in contact with a representative of Palmer, who has been in hiding since his return to the United States.
A new study claims that human bones became less dense as they shifted from foraging to farming.
