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Final Walden Biodiversity Report

My final summary report on the groupings of organisms and the people who found them during Walden Biodiversity Days in 2009 and 1998 is finished and can be downloaded here (5.7 MB). These events wouldn’t have been possible without hundreds of experts and helpers...

Berry Bad Guests: Invasive Aliens at the Dinner Table

In the run-up to Thanksgiving this week Shannon Mullen of National Public Radio interviewed me and Martha Stewart about Oriental Bittersweet, one of the most aggressively destructive invasive plants in the North East US and a staple of holiday decorations. Not...

Walden Biodiversity Day

On July 3rd and 4th I’ll be leading the second Walden Biodiversity Day, a gathering of top naturalists and field biologists — many of whom participated in the first Biodiversity Day in 1998 — who will fan out to find, identify and photograph over a thousand...

On the Road Again

This October I’m leading a trip to the Galapogos for Road Scholar, with several more departures planned for next April and May. There’s no doubt the Galapagos Islands provide one of the most thrilling wildlife experiences in the world. Without natural...

Happy Feet Live!

Interest in penguins, their lives and their homes (in this era of climate change) is at an all time high. Having lectured on the sex lives of penguins and all sorts of Antarctic topics since 1986, I will be returning again this February 22 – March 16 for the...