David Sherry from the Western University in Canada tells me what inspired him to study the hoarding behavior of birds, in the Scientific Spark. Oded Keynan explains the benefits to having offspring stick around for an extended period of time. I also find out why zebras have stripes, and why Rudyard Kipling was wrong!

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Zebras and their stripes 

Quicklinks:

Oded Keynan's webpage

Tim Caro's webpage

Tim's zebra paper in Nature communications

David Sherry's webpage