Thirty-six fascinating baseball facts to kick off the season, plus some first-pitch history: worst ceremonial first pitches in baseball history, 100 years of presidential first pitches, and Bush first pitches vs. Obama’s.

Researchers may have developed a dolphin-to-English translator that works in real time.

Before there was radar: ships with WWI era “dazzle” camouflage. Related: how insects relate to that sort of camouflage, and why a zebra has stripes.

Because it’s important to always be battle-ready: how to poop like a Samurai.

Safecracking for dummies.

ICYMI: Monday’s links, which were largely a roundup of April Fool’s Day history, pranks, and hoaxes, are here.