Tally the turtle was found more than 4,000 miles from home on Talacre Beach, in Flintshire.
Heavy seas and 86mph winds brought by Storm Barra have caused damage along the Welsh coast.
Researchers used underwater microphones to capture sounds of marine life on a reef in Indonesia, some of which have never been heard before.
By Steffan Messenger
BBC Wales Environment Correspondent
By John Campbell
BBC News NI Economics & Business Editor
By Victoria Gill
Science correspondent, BBC News
By Esme Stallard and Wanyuan Song