While birds and many dinosaurs produced hard-shelled eggs, the Antarctic egg has a soft shell.

与鸟类和许多恐龙产的硬壳蛋相比，南极洲这颗蛋外壳很柔软。

Louie is also less likely to cause or suffer career-ending injury due to its soft outer shell.

因为它的软质外壳，路易也不太可能造成或遭受伤害然后以至于职业生涯。

Like the name suggests, the leatherback turtle, unlike its harder-shelled cousins, has a softer shell that's leather-like to the touch.

像它的名字一样，棱皮龟与它的兄弟姐妹们的硬壳不同，它有着一个摸起来像皮革一样的柔软外壳。