Select the word that means sluggish.
Scientists who study the ocean have found unlikely co-investigators in a team of specially
equipped seals. Parts of the world's oceans, like the treacherous waters surrounding
Antarctica, are too remote and perilous for human researchers, but they're brimming with
seals. These seals may be languid on land, but they are active in the icy water. Marine
scientists have fitted more than three hundred elephant, Weddell, and crabeater seals
with specialized sensors that collect data about the water as the seals swim through it.
The data is remitted back to the lab, where scientists have used it to better understand
ocean currents and changes in Antarctic ice.
