3 Mexican wolf pups were found dead after their den was abandoned. Some speculate human activity around the den prompted the wolves to leave.
The agency said the mother left scratch marks from her efforts to get the pups out of a deep crevice in the den.
Why was there so much human activity around the den site ? :
Officials had been monitoring the pack’s alpha male because it was linked to four livestock killings within the past year.
Read the letter from conservation groups to Interior Secretary Salazar requesting an investigation.