Each weekday morning, OurAmazingPlanet takes the pulse of the Earth, reporting on natural phenomena and exploration news from around the globe.
Texas Twisters: Four confirmed EF-1 tornadoes struck North Texas yesterday. [Infographic: Tornado! An Inside Look at Tornado Season ]
Disturbed Den: A pair of polar bears went to sleep in their den on a deserted island, only to wake up in the middle of a construction site.
Civil War Weather: On this date in 1861, Confederate cannons fired the first shot of the Civil War. Find out what the weather was like during the war's early months.
Penguins Plummet: Two penguin species have declined sharply over the last 30 years because predators and fishers are taking all their food.
Previously on Our Daily Planet: Japan Aftershock and Iowa's Tornado Outbreak