“We won’t know why she ended up in the North Sea and then stranded at Thornham but she wasn’t very old so she may have been separated from her mum and then couldn’t find her way home.
“It would’ve been completely hopeless to try to re-float this whale in this situation because she was far away from home and in a poor condition. She wouldn’t have survived for much longer.”
He added: “In the water these whales are weightless but once they are on land they cannot support their own body weight. They have a lot of heavy muscle and tend to crush themselves and eventually their lungs collapse.”