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Raising humpback whale calves

Featuring: VideoVideo
Raising humpback whale calves Creative commons image Credit: The Open University New content
Updated 21 Oct 2014
Among the Hawaiian islands, researcher Dr Rachel Cartwright observes humpback whales and their calves in their breeding area.

String of sausages lichen

Featuring: AudioAudio
String of sausages lichen Copyrighted image Credit: BBC
Introductory level Duration 10 mins Updated 07 Jan 2013
Could this unusually named lichen be making a comeback?