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Observations

Observations

Opinion, arguments & analyses from guest experts and from the editors of Scientific American

This Psychedelic Shrimp Will Get You Hammered [Video]

Peacock mantis shrimp with its rock-hard hammer clubs; courtesy of S. Baron The psychedelic-looking peacock mantis shrimp ( Odontodactylus scyllarus ) has a decidedly non-peacenik way of getting a meal: clubbing it.This small (3 to 18-centimeter-long), solitary stomatopod wields two dastardly hammer-like appendages.

June 7, 2012 — Katherine Harmon

Shuttle Makes Journey up the Hudson to Final Resting Place [Video]

The Hudson River is basically Scientific American's backyard, so when we heard the space shuttle Enterprise was heading up the river to its final resting place aboard the USS Intrepid on Manhattan's west flank, we couldn't resist firing up the video camera and grabbing a few shots.

June 6, 2012 — Eric R. Olson

Big Herds Attract Plenty of Parasites

This flock of flamingos has more to worry about than a family of bonobos. Humans, of all species, should know that there are some big advantages to social living.

June 5, 2012 — Rose Eveleth

Where to Watch the Transit of Venus

The transit of Venus in December 1882 Today offers a final opportunity for 21st century stargazers to observe a transit of Venus. For those of you who forgot to bring your telescope to work today, we've got a guide for viewing the transit both indoors and outside.

June 5, 2012 — Daisy Yuhas

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