Puzzle 20 · Amazonia and the Neotropics · Page 38 in print

Glassfrog Streams

Many glassfrogs have transparent undersides that reveal internal organs; many of these small forest frogs lay eggs above streams, and the newly hatched tadpoles drop into the water below.

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A fringe-limbed treefrog, one member of the glassfrog family, rests on a leaf.

A fringe-limbed treefrog, one member of the glassfrog family, rests on a leaf.

Species reference for Glassfrog Streams. The photograph does not necessarily show the population or place named in the puzzle.

(c) Kai Squires, some rights reserved (CC BY) · CC BY 4.0 · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

A ghost glassfrog shows the delicate build of these streamside frogs.

A ghost glassfrog shows the delicate build of these streamside frogs.

Species reference for Glassfrog Streams. The photograph does not necessarily show the population or place named in the puzzle.

(c) Brian Gratwicke, some rights reserved (CC BY) · CC BY 4.0 · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

The words

  1. Bromeliads

    Air plants where some glassfrogs lay eggs.

    Eggs are laid above the water on leaves, rocks or bromeliads.

    Animal Diversity Web (opens a new tab)

  2. Cloud Forests

    Glass frogs are particularly diverse in montane cloud forests.

    Wikipedia (opens a new tab)

  3. Clutches

    Groups of eggs laid together; in some glassfrog species, a male guards more than one clutch.

    Animal Diversity Web (opens a new tab)

  4. Costa Rica

    Glass frogs are diverse in Costa Rica and Panama.

    Animal Diversity Web (opens a new tab)

  5. Creek Bed

    Tadpoles live on the bottoms of streams.

    Animal Diversity Web (opens a new tab)

  6. Egg Guarding

    Parental care is common and males guard clutches.

    Animal Diversity Web (opens a new tab)

  7. Frog Flies

    'frog flies' lay eggs in glassfrog eggs and their maggots eat the embryos.

    Wikipedia (opens a new tab)

  8. Glassfrog

    Glass frogs are named for the transparent skin of their undersides.

    Animal Diversity Web (opens a new tab)

  9. Leaf Litter

    Tadpoles live in the muck and leaf litter on stream bottoms.

    Animal Diversity Web (opens a new tab)

  10. Metamorphosis

    Glassfrog tadpoles feed in the stream until metamorphosis turns them into froglets.

    Wikipedia (opens a new tab)

  11. Organs

    The transparent skin shows the viscera (internal organs).

    Animal Diversity Web (opens a new tab) · Wikipedia (opens a new tab)

  12. Peep

    The glass frog's call is a high peep, like fine crystal.

    Animal Diversity Web (opens a new tab)

  13. Streams

    Glass frogs live high in trees overhanging mountain streams.

    Animal Diversity Web (opens a new tab)

  14. Tadpoles

    The young that drop into the stream.

    The tadpoles hatch and fall into the water below.

    Animal Diversity Web (opens a new tab)

  15. Tree Frogs

    Glass frogs are a family of translucent-skinned tree frogs.

    Animal Diversity Web (opens a new tab)

Sources

  1. Glassfrog Streams (source capture)Animal Diversity Web, University of Michigan Museum of Zoology
  2. Glassfrog Streams (source capture)Wikipedia

How we choose sources and photographs