larvae

Common crop pesticides kill honeybee larvae in the hive

“We found that four of the pesticides most commonly found in beehives kill bee larvae,” said Jim Frazier, professor of entomology, Penn State. “We also found that the negative effects of these pesticides are sometimes greater when the pesticides occur in combinations within the hive. Since pesticide safety is judged almost entirely on adult honeybee sensitivity to individual pesticides and also does not consider mixtures of pesticides, the risk assessment process that the Environmental Protection Agency uses should be changed.”

Wanyi Zhu, Daniel R. Schmehl, Christopher A. Mullin, James L. Frazier. Four Common Pesticides, Their Mixtures and a Formulation Solvent in the Hive Environment Have High Oral Toxicity to Honey Bee Larvae. PLoS ONE, 2014; 9 (1): e77547 DOI: 10.1371/journal.pone.0077547

Bee feeding larva in the hive. Credit: Maryann Frazier/Penn State

Swordfish are enormous creatures, but they sure don’t start out that way. The Department of Teeny-weeny Wonders is marveling at this close-up photo of a baby swordfish or swordfish larva, taken by fishery biologist Juan C. Levesque.

Most swordfish grow to be about 3 meters (9.8 feet) in length and some get even bigger still, but when they first hatch from their eggs they’re only about 4 millimeters long. These itty-bitty larvae grow at an astonishing rate, feeding on a diet of other fish larvae and zooplankton, reaching a length of up to 39 inches (3.25 feet) during their first year of life.

To learn more about these amazing fish check out Levesque’s article about them on Florida Sportsman Magazine.

[via Twisted Sifter]

Baby Slipper Lobster

Photograph by Peter Parks, SeaPics.com, from the book Citizens of the Sea

This baby slipper lobster, found during a Census of Marine Life expedition, is completely transparent, though as the creature grows, a thick shell will cover it.

The lobster’s bizarre eyes may confuse predators while it floats among plankton, or tiny animals, according to the new National Geographic Society book Citizens of the Sea: Wondrous Creatures From the Census of Marine Life.