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Branchial heart
Videos
Branchial hearts are accessory pumps that supplement the action of the systemic heart in a cephalopod's body. They are myogenic in nature. Branchial hearts are always in pairs located at the base of t
Ventral view of the viscera of Chtenopteryx sicula, showing the presence of the branchial hearts.
Ventral view of the viscera of Chtenopteryx sicula, showing the presence of the branchial hearts.
Cephalopod
Videos
A cephalopod is any member of the molluscan class Cephalopoda such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a promin
Cephalopod
The primitive nautilus eye functions similarly to a pinhole camera.
The primitive nautilus eye functions similarly to a pinhole camera.
A cuttlefish with W-shaped pupils which may help them discern colors
A cuttlefish with W-shaped pupils which may help them discern colors
This broadclub cuttlefish (Sepia latimanus) can change from camouflage tans and browns (top) to yellow with dark highlights (bottom) in less than a se
This broadclub cuttlefish (Sepia latimanus) can change from camouflage tans and browns (top) to yellow with dark highlights (bottom) in less than a second.