I just watched this mama bear catch a salmon and feed her three cubs on a live bearcam at Katmai National Park in Alaska:
You can watch the live webcam below or go to the link at the bottom for a page with other bearcams to watch too.
This is the place where the bears catch salmon as they jump Brooks Falls.
Source: Brooks Falls – Katmai National Park, Alaska – Bears – explore
These are some of the other nature webcams you can watch at that page.