
Category Evolution
A Precarious Measure
Oldest Central American Pyramid Discovered
After sheltering jeweled royals for centuries, the oldest known tomb in Mesoamerica—ancient Central America and Mexico, roughly speaking—has been uncovered, archaeologists announced Tuesday.
Apparently caught between two cultures, the 2,700-year-old pyramid in Chiapa de Corzo (map), Mexico, may help settle a debate as to when and how the mysterious Zoque civilization arose, according to excavation leader Bruce Bachand.
The Unfortunate Sex Life of a Banana
The banana, however, is a freakish and fragile genetic mutant; one that has survived through the centuries due to the sustained application of selective breeding by diligent humans. Indeed, the “miraculous” banana is far from being a no-strings-attached gift from nature. Its cheerful appearance hides a fatal flaw— one that threatens its proud place in the grocery basket. The banana’s problem can be summed up in a single word: sex.

