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The researchers conducted a
on two dolphins named Dolly and Donna. Experiments tested what
of electricity the dolphins could detect. Dolly and Donna could sense
kinds of electricity - direct
and alternating current. They were a lot
at picking up direct current. All
produce direct current electricity in water. The researchers say being able to detect this means dolphins may be able to sense the
of most kinds of fish that are near
. The dolphins could use their
sense to hunt, even if they cannot see or hear well, or if they cannot use their
senses. The study has been published in the "Journal of Experimental Biology".
