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5 answers

no, there are some sharks and other fish that can also do that !

2006-09-04 04:36:16 · answer #1 · answered by Anonymous · 0 1

No. Trout do this too, except they are called steelhead when they go back to freshwater after living in the ocean.

2006-09-04 04:39:40 · answer #2 · answered by wotana02 3 · 1 0

There are a bunch of fish species that do this.

2006-09-04 07:50:41 · answer #3 · answered by Mr. Knowitall 3 · 0 1

nooooooo

2006-09-04 10:25:12 · answer #4 · answered by 1234 1 · 0 1

eels are one that also do

2006-09-04 04:37:03 · answer #5 · answered by Robert A 5 · 1 0

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