sentence: Pups are about  long at birth and weigh about .
sentences_after: They are born on the ice from mid-March to early April. They are born with a slate blue-grey coat with a pale cream color on the belly. They moult after about 14 months. Nursing of the pup lasts for an average of only 4 days. This is the shortest lactation period of any mammal.
concept_name: pup
headings: Hooded seal Offspring
categories: Pinnipeds Megafauna Mammals of Great Britain