Tens of million years ago, sand tiger sharks hunted in the waters off the Antarctic Peninsula, gliding over a thriving marine ecosystem on the seafloor below. All that remains of them today is their ...

Before we start talking about tiger shark teeth, get to know the shark that these teeth come from. Tiger sharks, like many other shark species (but not all of them), are solitary creatures. They tend ...

The tiger tooth aloe (Aloe juvenna) is a deceiving charmer. This clump succulent has an unusual growth habit. The leaves grow in stacked layers, with three leaves per layer. The stem of leaves grows ...

Sharks are known as iconic marine predators — and their sharp chompers come with the territory. Certain shark species can have hundreds to thousands of teeth at a time that are consistently yanked out ...