grey seals信息详情
灰海豹
seals───n.seal的复数形式
aspirants seals───上进者封印
adjust seals───调整密封件
bouncing seals───弹跳密封
hunt seals───猎海豹
gravy seals───肉汁印章
harbour seals───海豹
engraved seals───刻印
vane seals───叶片密封
Harbor seals are small compared with other phocids species such as grey seals, all of which are known to fast for the entire lactation period.───与其他 phocids 物种(如灰海豹)相比,港海豹体型较小。众所周知,灰海豹在整个哺乳期都禁食。
Grey seals prefer rocky, exposed sites, while common seals prefer more sheltered areas and are frequently found on sandbanks.
International concern for these extremely rare mammals arose after thousands of grey seals were wiped out by the canine distemper virus.
Below, in a steep dark inlet, grey seals would pup in the autumn in the tiny inaccessible cove.
However, in the deeper waters off the west coast, dives in excess of 1000m have been recorded for grey seals.