Orca - Killer whale

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Nice photo showing orca from a bit different angle than usual.

*This image is copyright of its original author

This article about orcas and how noise of boats cause troubles is also interesting.

Quote: 
"Underwater ocean ambient noise has increased by approximately 15 decibels in the past 50 years due to increased marine transportation and other anthropogenic (human-made) sources.
Noise travels approximately five times faster in water than air and has a wide range of detrimental effects on whales. With increasing numbers of vessels plying the world’s oceans, their engine noise is making it hard for many whale species to communicate."

Source: https://www.earthtouchnews.com/oceans/whales-and-dolphins/quieter-ships-could-help-canadas-endangered-orcas-recover/ Reply