Yes, the Hebrew word for dolphin (תחש) appears multiple times in The Bible, including:
Exo 25:5
Exo 26:14
Exo 35:7
Exo 35:23
Exo 36:19
Exo 39:34
Num 4:6
Num 4:8
Num 4:10
Num 4:11
Num 4:12
Num 4:14
Num 4:25
Keep in mind that the English word Dolphin existed but wasn't in common use in the 17th Century, so the KJV doesn't use it. The word "seal" was used instead.
Michael Donoghue has written: 'Dolphins' 'Save the Dolphins (A David Bateman Book)'
Whitlow Au has written: 'The sonar of dolphins' -- subject(s): Dolphins, Echolocation (Physiology), Physiology, Sonar
A. N. Baker has written: 'New Zealand whales and dolphins' -- subject(s): Cetacea, Dolphins, Whales
The Island of the Blue Dolphins was written by Scott O Dell.
the original bible was written in latin!
Craig A. Murray has written: 'Whales and dolphins' -- subject(s): Whales, Cetacea, Dolphins, Behavior, Geographical distribution
Sharon Bokoske has written: 'Dolphins!' -- subject(s): Dolphins, Fiction, Juvenile Fiction, Juvenile literature, OverDrive
Barbara Todd has written: 'Whales and Dolphins'
The first written account in the Bible is Exodus.
When the Bible was written, paper was not invented. The Bible was first written on clay tablets. Then it was written on animal skin and kept in stone jars to preserve them. It was then written on papyrus. Now it is written on paper.
Marianne Roger has written: 'The dolphins swim free'
Kevin Grose has written: 'Dolphins, Porpoises and Whales'