Smelly birds are Joann’s topic. Gordon loves Serviceberry. Gary explains how to run a mark and recapture experiment to estimate animal populations. In the biogeochemical cycle series, the nitrogen cycle is explained.

Gordon tells about the COOLEST fish, Joann hears Northern Flickers, and Gary's out frog hunting. We interview Keanna Leonard of Rowe Sanctuary about her work with kids and frogs.

The Question Show: Gordon, Joann, Gary and Bug Girl answer an assortment of questions about Snow Fleas, Black Holes, Plant Geography, Frogs and Butterflies. What fun!

Gordon finally fulfills his promise to tell us about Costa Rica! We interview Max Vindas, Costa Rican naturalist and guide for the ecotour.

Joann and Gary spotted Spotted Salamanders. Gordon has fond memories of Eastern Red Cedar. Gary is concerned about invasive worms. Eugenie Scott of the National Center for Science Education talks about evolution and global warming.

Joann talks about the leap year, Gordon talks about quick sand and Gary discusses some new research on the speciation of a species of bacteria. An interview with Dr. David Wagner from the U. of Connecticut and the importance of caterpillars.

Gary sees flocking behavior in birds, Gordon is thinking about sand. Joann follows up on a possibly-arsenic-using bacterium. This leads to a discussion of the Phosphorus Cycle.

The oldest living organism may be sea grass according to new research. Joann compares and contrasts Red-bellied and Red-headed Woodpeckers. Gordon saw a King Vulture in Costa Rica. There is a minor mystery about this bird. Bill Lynch tells all about amazing Turkey Vultures.

Joann wishes everyone a (belated) Happy Groundhog Day. Gary's in the stream, looking at Redbelly Dace. We interview Cynthia Taylor of Elachee Nature Science Center about their stream restoration project.

Gary talks about CO2 in the water column. Gordon looks at a good Saturday when a Spotted Towhee visited TWC, a community nature center. Joann "comes clean" about reading nature books. We interview David Gessner, author of "My Green Manifesto."