They have very little nubbins
for pectoral fin spines, the arm spines.
Not exact matches
Useful and versatile they might be, but
for Mastacembelus apectoralis, the
pectoral fins seem to have got in the way.
Spiked structures on male zebrafish
pectoral fins are important
for mating but also produce a potent signaling inhibitor.
«We discovered that male zebrafish have a very important set of structures on their
pectoral fins that they use
for breeding and that these structures secrete a potent molecular inhibitor of a key signaling pathway to aid their cycles of regular replacement,» explains senior author Kenneth Poss of Duke University Medical Center.
«
Pectoral appendages (
fins and forelimbs) are mainly used
for locomotion.
Humpback whales are a baleen whale and are renowned
for their spectacular behaviour of leaping out of the water, rolling in the air with their huge
pectoral fins outstretched like wings, and crash noisily back into the water.
At first, people thought that killer whales were responsible
for its death as there was damage on its
pectoral fins and flukes made by orca -LSB-...]
We also regularly spot the newly - discovered «walking» Epaulette Shark in the shallows, scooting along with their
pectoral fins and hunting
for their next meal.