Blue whales have been dropping pitch incrementally over several decades, but the cause has remained a mystery. A new study finds a seasonal variation in the whales' pitch correlated with breaking sea ice in the southern Indian Ocean. The new research also extends the mysterious long-term falling pitch to related baleen whales and rules out noise pollution as the cause of the global long-term trend, according to the study's authors.
from Latest Science News -- ScienceDaily https://ift.tt/2zwNlgK
via IFTTT
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment