https://www.bbc.com/news/world-us-canada-58032702
"By analysing hydrophone data, and taking a small park service boat into
Glacier Bay three times a week to photograph and identify whales, Gabriele has
already noted changes.
She compared whale activity in pre-pandemic times to human behaviour in a
crowded bar. They talk louder, they stay closer together, and they keep the
conversation simple.
Now, the humpbacks seem to be spreading out across larger swathes of the bay.
Whales can hear each other over about 2.3km (1.4 miles), compared with
pre-pandemic distances closer to 200m (650ft). That has allowed mothers to
leave their calves to play while they swim out to feed. Some have been observed
taking naps. And whale songs - the ghostly whoops and pops by which the
creatures communicate - have become more varied."
Via Lisa Stranger.
Share and enjoy,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
