On a hot February morning, Galápagos National Park rangers released 50 giant tortoises back to Floreana Island—marking the beginning of a historic comeback.

The wrinkly rodent barely seems to age and appears almost impervious to cancer, heart disease, and mental decline. Can these astounding abilities be adapted for humans?

When temperatures drop, so do the invasive green reptiles. Here’s everything you need to know about cold-stunned iguanas.

From their odd appendages to their unsavory hygiene, certain animals suffer an image problem. But their awkward attributes can be their biggest advantages. Found across every continent except ...

From sharks to bats to lions, these researchers are showing their local communities the importance of these often misunderstood species to their ecosytems. Lemon sharks (pictured in the Bahamas) are ...

A team of National Geographic Explorers is studying how these bats developed their architectural expertise—while cataloguing the various styles of tents they make.

They enthralled sailors. They inspired Darwin. Then, by the mid 19th-century, the iconic Floreana tortoise was gone. Here’s how a group of persistent scientists unlocked the secrets to bringing them ...

Dim the lights, put on some slow jams... get up in the tree? National Geographic's Crittercam technology just revealed a mating ritual never before seen in any bear species. An Andean bear named Ruru ...

Although sharks aren’t the mindless man-eaters they are sometimes made out to be, experts know that staying safe involves skill, knowledge, and practice. Host Bertie Gregory filming a ragged tooth ...

Tigers and monkeys and tapirs, oh my! Joel Sartore's latest book, "National Geographic Photo Ark: Babies," captures the animal kingdom's most curious youngsters. Sumatran tigersPanthera tigris ...

The new National Geographic series Pole to Pole ventures deep into the Amazon in search of creatures whose venom may yield new life-saving drugs. In episode 2 of Pole to Pole, Will Smith captures a ...