Five of the six documented samples of a rare species of this animal, which has never been seen alive and has a spade-shaped tooth, have been found in New Zealand. The nitrogen-rich (-5[1])flocculent feces of these animals contributes to their namesake “pump,” which moves nutrients in the opposite direction of the biological pump. (10[1])Some species of these animals cooperatively use “bubble nets” to feed. (10[1]-5[1])Nutrients can be supplied (-5[1])two thousand times (-5[1])faster than marine snow by ecosystems composed of these animals’ carcasses, (10[1])which are named for their (10[1])“falls.” (10[1])A toothless variety of these animals feeds by taking in and then expelling water through a keratinaceous plate to filter krill and plankton. (10[1])For 10 points, name these large aquatic mammals that include baleen and humpback (10[1])types. ■END■ (10[3])