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Earless seal: Quiz


Question 1: This allows most phocids to forage far from land to exploit prey resources, while otariids are tied to rich ________ zones close to breeding sites.
Humboldt CurrentUpwellingWater columnHydrothermal vent

Question 2: Lactation ranges from 28 days in the ________ to just 3–5 days in the Hooded Seal.
Harbor SealCoyoteNorthern Elephant SealRed Fox

Question 3: Their fore-flippers are used primarily for steering, while their hind flippers are bound to the ________ in such a way that they cannot bring them under their body to walk on them.
PelvisBoneTorsoHuman leg

Question 4: Until recently, many researchers believed that phocids evolved separately from otariids and odobenids from ________-like animals, such as Potamotherium, which inhabited European fresh-water lakes.
OtterRed FoxSea otterRaccoon

Question 5: Monk seals and Elephant seals are believed to have first entered the Pacific through the open straits between North and South America, which closed only in the ________.
Geologic time scalePlioceneGreat American InterchangeMiocene

Question 6: Phocids have fewer teeth than land-based members of the ________, although they retain powerful canines.

Question 7: The earliest fossil phocids date from the mid-________, 15 million years ago in the north Atlantic.
PlioceneLanghianMioceneGeologic time scale

Question 8: ________, Mirounga leonina
Leopard SealAntarctic Fur SealRed FoxSouthern Elephant Seal

Question 9: Because a phocid mother's feeding grounds are often hundreds of kilometers from the breeding site, she must ________ while lactating.
EasterLiturgical yearFastingJesus

Question 10: Retractable nipples, internal testicles and an internal ________ sheath provide further streamlining.
PenisRectumReproductive systemBreast

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