This basic process allows the machine to adopt the most effective way of achieving its goal, whether that be flapping, swimming or walking.
IT is a sunny day and Colin Noonan, his turtle-print swim trunks flapping, is making a beeline for the in-ground swimming pool in the backyard of his friend George.
In file shells that can swim by flapping their valves, there is also a single, central adductor muscle.
Based on earlier, less complete remains, anomalocaridids were thought to have just one pair of swimming flaps per body segment.
"We were excited to discover that it shows features that have not been observed in older Cambrian anomalocaridids — not one but two sets of swimming flaps along the trunk, representing a stage in the evolution of the two-branched limb, characteristic of modern arthropods such as shrimps".
She was skipping down the hotel lobby, flip flops flapping, goggles swinging, her towel swim robe flying like a cape.
This tubby fish, about a meter long, swims by flapping its pectoral fins.
Sometimes, on a windswept beach, as – in time-honoured, British fashion – I am wriggling into my costume under a flapping towel, I wonder what compels me to swim.
Pteropods, Gastropteron, Akera, and others move foot flaps (parapodia) to provide motion, and some species swim by undulating their entire bodies.
Manta, or devil, rays (Mobulidae) swim mostly at or near the surface, progressing by flapping motions of the pectoral fins.
