Killer whales typically reproduce every five years, giving the mother time to recover from the physical demands of pregnancy and giving birth, Hanson said. While no significant data are available ...

Killer whales typically reproduce every five years, giving the mother time to recover from the physical demands of pregnancy and giving birth, Hanson said. While no significant data are available to ...

The calf was born Dec. 24. Observing researchers noted unusual unspecified behaviors by mother and calf that led them to worry for the young whale's health.

We don't know what that would be." In 2020, experts were excited when J35 gave birth to another calf because up to 70% of orca pregnancies end with either a miscarriage or a calf that dies shortly ...

An endangered Pacific Northwest orca that made global headlines in 2018 ... not only because she could have eventually grown to give birth and bolster the struggling population, but because ...