The Scientist spoke with marine biologist and barnacle researcher John Zardus about why turtle barnacles—previously thought to be immobile—in fact slowly travel. He thinks the answer is food.
After a nearly 30-year hunt, researchers have shown that a neurotoxin generated by cyanobacteria on invasive plants is responsible for eagle and waterbird deaths from vacuolar myelinopathy.
Monitoring the comings and goings of aquatic life with traces of DNA in water has become an established biomonitoring technique, but scientists are now using environmental DNA to assess terrestrial animals.