https://phys.org/news/2018-07-endangered-puget-orca-dies-birth.html > Balcomb says the mother was observed propping the newborn on her forehead and trying to keep it near the surface of the water. > The fish-eating southern resident killer whales have struggled for years with a lack of food, pollution and disturbances from boat traffic. There are just 75 of the orcas, a 30-year low.