Famed Apollo 13 astronaut Ken Mattingly dies at 87

Astronaut Ken Mattingly is best remembered for his efforts on the ground that helped bring the damaged Apollo 13 spacecraft safely back to Earth in 1970.

Emperor tamarin twins: Racine Zoo announces September arrivals

The Racine Zoo on Wednesday, Nov. 1 announced the arrival of another pair of emperor tamarin twins. The animals were born in September.

Cool sight: First 'frost flowers' of fall spotted in southwestern Missouri

Frost flowers happen in late fall after a few hard freezes and while the ground is still warm. They don't stick around for long, disappearing on the day they show up, melting away like frost in the warm air or sunlight.

Watch: Bear paddles through crystal clear Lake Tahoe

It was a beautiful sunny day at Lake Tahoe and one black bear decided to make the most of it by taking a dip.

Watch: Sumatran tiger cubs born at Nashville Zoo get checkup

Three Sumatran tigers have been born at a zoo in Tennessee. Nashville Zoo officials announced that the two female and one male cubs were born Oct. 20.

Will bananas go extinct? Fungal disease threatens popular variety, scientists warn

The Cavendish banana – which accounts for just under half of all global production – faces a serious threat. A similar disease killed its predecessor, the Gros Michele variety.

Watch: Alligator nabbed after swimming up to Florida beach

Beachgoers in South Florida were in for a wild surprise Monday afternoon when an alligator was spotted floating in the surf at Hillsboro Beach.

Watch: Dolphins guide lost whale and calf back to migration route in heartwarming display

A heartwarming incident occurred near Bunbury Back Beach, Australia, as a pod of dolphins guided a lost mother humpback whale and her calf back to their migration route.

Scientists calculate Earth will likely cross crucial warming threshold in early 2029

In a little more than five years – sometime in early 2029 – the world will likely be unable to stay below the internationally agreed temperature limit for global warming if it continues to burn fossil fuels at its current rate.

Watch: Spanish police save great horned owl trapped in barbed wire fence

In a heartwarming rescue operation, Spanish authorities, including local police and the Nature Protection Group, came to the aid of a great horned owl trapped in a barbed wire fence near the Limonero dam in Malaga.

Oklahoma teen hunter bags rare 'Cactus buck' during youth season

Oklahoma teen hunter, Major Edmonds, made headlines for his rare catch – a "Cactus buck." During the youth hunting season, Edmonds encountered a deer with abnormal antler growth, retaining its velvet, resembling a cactus.