How to Read Ancient Mayan

In this month’s issue of National Geographic, I tell a story of an ancient dynasty of Maya kings who made perhaps the region’s best attempt at creating what we might call an empire. It’s a twisting tale of political maneuvering and ambition unlike any other in the Pre-Columbian world. It’s actually kind of incredible that […]

Counting Pistachios, Taxis and Great White Sharks

In this month’s issue of National Geographic, I lay out a simple question. How many great white sharks are there on Earth? It seems simple enough – we’ve found some 3,500 planets outside our solar system and 400,000 species of beetles on Earth. This is the modern world of crowdsourcing and big data. We can […]

Something About Sharks

Recently, in the sumptuously warm waters off Maui, a woman went out snorkeling, got separated from her two friends, and was killed by a shark. Her body was found floating facedown about 200 yards offshore; the wounds on her torso told of her tragic end. Considering how many of us spend time in the world’s […]