Orca mothers care for their adult sons throughout their life by sharing food to sustain their massive appetites, a new study finds. The maternal strategy comes with costs — and may even raise their risk of extinction.
A new study finds that orca mothers still feed their adult sons. It's a bond that may come with costs, researchers say.toggle captionA new study finds that orca mothers still feed their adult sons. It's a bond that may come with costs, researchers say.Twenty years ago, in the waters off the coast of Washington State and British Columbia, an adult female killer whale gave birth to a son, K35.
Weiss has observed the mom and son pair spending a lot of time close together, touching and floating at the surface — and sharing salmon. So his mom will often dive down, says Weiss,"catch a salmon, and bring it up to the surface and actually bite half of the fish off and leave that half for her son. So she's sharing a huge amount of food."
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