Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: Toxins is contained in the skin of brightly colored poison dart frogs.

A: What is contained in the skin of brightly colored poison dart frogs?
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Q: The core of a star collapses during a supernova, forming a neutron star.

A: The core of a star collapses during what event, forming a neutron star?
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Q: While similar to insects, arachnids are eight-legged invertebrates that lack antennae or wings.

A:
While similar to insects, what eight-legged invertebrates lack antennae or wings?
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