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Science

Name a living egg-laying mammal group.

The two living monotreme groups, at common-name level. Enter platypus or echidna, not a species or an extinct group.

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Start with the full category, then apply the exact boundary: The two living monotreme groups, at common-name level. Enter platypus or echidna, not a species or an extinct group. You only need one qualifying answer. A longer name is not automatically rarer.

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EchidnaEchidnas are the other living monotreme group and also lay eggs.
75

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Echidna

Echidna · 75 points · 7 characters

Echidnas are the other living monotreme group and also lay eggs.

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Echidna

75 points · Shortest accepted spelling: Echidna

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EchidnaEchidnas are the other living monotreme group and also lay eggs.Aliases: Echidnas · Spiny anteater · Spiny anteatersShortest accepted input: Echidna · 7 characters
75 points
PlatypusThe platypus is an egg-laying mammal; it is not a marsupial.Aliases: PlatypusesShortest accepted input: Platypus · 8 characters
35 points
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  • Apply the complete question boundary: The two living monotreme groups, at common-name level. Enter platypus or echidna, not a species or an extinct group.

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Each entry belongs to the bounded set defined by the prompt. The named source supports the underlying facts; our editorial scoring is a separate layer.

Source: Australian Museum · Monotremes ↗

Reference version: 2026-10-21. See our answer policy for how we handle aliases and omissions.