In an effort to keep sharks away, McConnell wore a high-tech ankle device that interferes with animals' electroreception
to find prey.
They are equipped with a special sense called electroreception
, which is the biological ability to perceive natural electrical stimuli.
in neonatal bonnethead sharks, Sphyrna tiburo.
In addition to its obvious physical characteristics--such as webbed feet, rubbery snout, and ears at the jaw's base--the platypus is a venomous monotreme with electroreception
, double cones in its eyes, a jaw unique to mammals, and bones in its pectoral girdle that other mammals lack (see Grant 2008).
Furthermore, their electroreception
and chemoreception systems are fundamental to locate and capture prey.
A similar electroreception
sense may be found in other insects, many of which have similar body hairs, the University of Bristol researchers believe.
Hodgson (1987) noted that Port Jackson sharks were bottom dwellers with relatively small eyes, and that vision did not play as important a part as olfaction (smell) and electroreception
in feeding and social behaviour.
* With electroreception
blocked, sharks usually failed to capture prey.
The majority of electroreception
research has focused on varying the strength of applied current or the size of the dipole separation (Kalmijn, 1971, 1978; Kajiura and Holland, 2002, Kajiura, 2003; Kajiura and Fitzgerald, 2009).
Wilkens, "Paddlefish and platypus: parallel evolution of passive electroreception
in a rostral bill organ," Sensory Processing in Aquatic Environments, pp.
Some land vertebrates, including such salamanders as the Mexican axolotl, have electroreception
and, until now, offered the best-studied model for early development of this sensory system.
americana may rely more heavily on electroreception
, and therefore the strong induced current produced by the barium-ferrite magnets elicited a repellent response.