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Spinal tap: Using cactus spines to isolate DNA

Isolation of DNA from some organisms is a routine procedure. For example, you can buy a kit at your local pharmacy or grocery store that allows you to swab the inside of your cheek and send the sample for DNA sequencing. ...

Sea animal has grow-again penis

Scientists reported Wednesday on the bizarre sex life of a sea slug that discards its penis after copulation. Then grows a new one.

New materials of caturoid fish discovered in China

In a newly published articles, researchers from the Institute of Vertebrate Paleontology and Paleoanthropology describe new materials of caturoid fish—Gymnoichthys inopinatus, from the Middle Triassic Guanling Formation ...

Sharksucker fish's strange disc explained

There's an old legend about a fish that attaches itself to ships and has powers to slow them down. The powers may be mythical but the fish is real. 

How flick knife thumbs help Japan's rare fighting frogs

Combat-ready spikes which shoot from fingers sounds like the weaponry of a comic book hero, but a Japanese scientist has found exactly this in a rare breed of frog. The discovery, which is published in the Journal of Zoology, ...

3D printing applied to evolutionary relationships and biology

When you think 3D you probably imagine the cinema and popcorn, or that fancy TV you've just blown the kids' university fees on. What you probably don't think – unless you're a particular breed of palaeontologist – is ...

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.

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