Feeding the pups is also more difficult.

喂养幼仔也更加困难。

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The pups looked to be the same age as the pup on his porch.

小狼崽看起来和门廊上的小狗崽一般年纪。

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After the pups had that down, the researchers placed a test bowl elsewhere in the room.

在小狗们失败后，研究者们会在房间的另外其他的地方放个测试碗。

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Mothers and pups hang in groups on the ceiling.

VOA: special.2009.12.07

Although not parents, the pups receive nearly all their food from the escorts for up to three months.

ECONOMIST: Parents can make things worse

Joanne Roberts, from the zoo, said everyone was pleased to see the pups rehabilitated and back in the wild.

BBC: NEWS | UK | Wales | Mid | Seal pups head for new horizons

The pups were born in September, six months after the zoo opened the UK's first underwater viewing zone for the species.

BBC: The baby giant otters