New Delhi, March 5 -- The birth of the Colossal Woolly Mouse, announced by the US-based Colossal Biosciences on Tuesday may seem like a small step in genetic engineering. What it is actually, is a giant leap in the journey to resurrect the woolly mammoth. For the Colossal Woolly Mouse are mice engineered to express multiple key mammoth-like traits that provide adaptations to life in cold climates....