The Committee on the Status of Endangered Species , a federal advisory group, has created a list of 340 animals and plants that are in some jeopardy. A species likely to become endangered if limiting factors are not reversed. Webmaster The Edmonton Journal November 29, 1999.
Seasonal movements vary greatly with ice conditions and food availability.
Varies greatly according to region and time of year. The largest male captured was estimated to be in the range of 820 kg. Males on average weigh between 230 kg and 320 kg, females 160 kg to 250 kg. Depends on region. Most females become sexually mature around four years of age, Beaufort Sea animals five years and Hudson Bay three years.