New research illustrates a complex series of changes that occur in grizzly bears' hearts as ... During that time, its heart rate slows drastically from around 84 beats per minute when active ...

The original teddy bear owned by the unnamed family belonged to a young girl and had a recording of her mother’s heartbeat inside. The family accidentally donated the bear to a Goodwill in New ...

A family accidentally donated a 4-year-old girl's bear with a recording of her dead mom's heartbeat. Build-A-Bear replaced the bear with the recording after hearing about the story, WVLT reported.