| This was how, he believed, lungs originally arose in a lungless world, and feathers in a featherless one. |
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| Certainly, the cassowary's clawed wings, scaly legs, featherless heads, wrinkled necks, and large size give them a dinosaur-like appearance. |
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| When the chicks hatch, their thin, featherless skin is extremely vulnerable to the direct rays of the sun. |
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| Afloat in orange cages on the coastal wetland, the featherless chirpers warn researchers of toxic fumes rising from oil. |
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| Newborn chicks are featherless and are dark blue or black in colour. |
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