They certainly use cues from the world around them, says Dr Simon Robson from the School of Marine and Tropical Biology at James Cook University.

它们能够利用它们周围的线索。詹姆斯·库克大学海洋和热带生物学院的西蒙·罗布森说。

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"I cannot thank enough the Scotland team doctor, James Robson, physiotherapist Lisa Casey and WRU doctor Mike Fardy for their extreme professionalism whilst on the Millennium Stadium pitch, " added the Zimbabwe-born winger.

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The winners were Oliver Golding, James Marsalek, Laura Robson, Tara Moore and Eleanor Dean, while Liam Broady, Lewis Burton, Ashley Hewitt and Fran Stephenson all produced encouraging displays against top-10 ranked opponents.

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He then went on to become Ruud Gullit's assistant at Newcastle and had a brief spell as caretaker manager at the Tyneside club after the Dutchman's exit in August 1999 before working under Sir Bobby Robson at St James' Park.

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