The blue whale: the world's most versatile measuring stick? / Where are all the baby blue whales? Scientists may have finally cracked the mystery / How citizen scientists are uncovering the secret lives of blue whales / Baleen plates provide new insight on life history of blue and fin whales / Rare footage reveals intimate family lives of blue whales / Scientists weigh up current status of blue whale populations around the world / Scientists confirm that Seychelles is frequented by blue whales