Chain Crosswords Medium Chain Travel Hard — Set 20

Medium 13×13 Set 20
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Across
  1. 2. A shellfish with two hard shells that close together
  2. 5. The largest animal in the ocean
  3. 6. A long reptile with no legs that slithers
  4. 7. A bumpy-skinned animal related to frogs
Down
  1. 1. A smart ape closely related to humans
  2. 3. A large graceful white bird that lives on lakes
  3. 4. A small furry animal with long ears that hops
  4. 6. A large ocean fish with sharp teeth