THE GALAPAGOS—A low rumble, a cross between muffled mooing and distant foghorns, pierces the heavy air. This is what it sounds like when giant tortoises mate. The song is bizarre yet magically ...

More than a decade ago, P. Dee Boersma used crowbars and hammers to chisel a small hole out of lava on the Galápagos Islands, hoping to attract one of the world’s rarest penguins. Five months later, a ...

Each Humboldt Penguin at the Houston Zoo has its own distinct personality. One penguin, named Dora, is one of the youngest and bravest penguins to explore the Houston Zoo's new, state-of-the-art ...