For thousands of years, millions of monarch butterflies have migrated from the northern U.S. and Canada to Mexico for the winter. But exactly how they know where to go is still a mystery.

Monarchs traveled to a remote part of Mexico, a journey they've made for thousands of years, and wintered there. Now tens of ...

The Mexican flame vine (Pseudogynoxys chenopodioides) is a non-native, evergreen vining species that is a great addition to a ...

The peak of the spring monarch butterfly migration in Texas typically occurs from late March to early April. See where on Journey North.

South Padre Island in the Rio Grande Valley gears up for Semana Santa, or Easter week, attracting Mexican tourists with ...