Siberian ibex

The Asiatic ibex is a rugged wild goat that roams the mountains of Central Asia. It's the biggest member of its goat-like family, though not quite the tallest. These sure-footed climbers live across a vast range, but their numbers are slowly declining.

• They're the heaviest and longest wild goats in their genus.
• Scientists still debate whether they're one species or several closely related ones.
• Their population is shrinking, but their huge habitat makes them hard to study.