Climate change driving 'ghost moose' calf mortality, say researchers

Tick infestations are killing moose calves in the northeastern U.S. at an alarming rate and climate change is to blame, according to a recent study.

The dead moose calves with pale or missing patches of fur, drained of their blood from parasitic winter ticks, are part of a phenomenon known as "ghost moose" which affects young and old, but with far more devastating consequences for calves.