Sea urchin's spiny, elastic strength revealed

(Phys.org)—For the first time, a team of Australian engineers has modelled the microscopic mechanics of a sea urchin's spine, gaining insight into how these unusual creatures withstand impacts in their aquatic environment.

Dolphins sponge up culture: study

Bottlenose dolphins that have learnt to use sea sponges as hunting tools form cliques with others that do the same -- the first evidence of animal grouping based on mutual interest, a study said Tuesday.

Superfast evolution in sea stars

(Phys.org) -- How quickly can new species arise? In as little as 6,000 years, according to a study of Australian sea stars.

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