• Professor of Entomology and Extension Specialist, Penn State
One distinction between a snail and a slug: The snail has a shell. maxphotography/Moment via Getty Images

Why are snails and slugs so slow?

These members of the mollusk family may be slow, small and slimy, but they are an indispensable part of the ecosystem.
Soybean seeds treated with neonicotinoids (blue) and treated corn seeds (red) versus untreated seeds. Ian Grettenberger/PennState University

Why it’s time to curb widespread use of neonicotinoid pesticides

US farmers are planting more and more acres with seeds coated with neonicotinoid pesticides. An ecologist explains why this approach is overkill and may be doing more harm than good.

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