from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or relating to hydrodynamics.
- adj. Of, relating to, or operated by the force of liquid in motion.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of, or relating to the science of hydrodynamics
- adj. Operated by the force of water in motion
from the GNU version of the Collaborative International Dictionary of English
- adj. Pertaining to, or derived from, the dynamical action of water of a liquid; of or pertaining to water power.
from The Century Dictionary and Cyclopedia
- Pertaining to or derived from the force or motion of a fluid; relating to hydrodynamics.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to hydrodynamics
Sorry, no etymologies found.
Or maybe hard plastic in a "hydrodynamic" (if their is such word) form that could withstand the currents.
So one possibility is that the melanosomes got bigger during later penguin evolution as the birds became better underwater swimmers and needed a more hydrodynamic covering.
Like its natural archetype, the AquaPenguin from Festo has a hydrodynamic body contour.
By contrast, Deep Flight Challenger, a one-person, high-performance, experimental, prototype submersible designed by Hawkes, looks more like a plane and uses hydrodynamic force to propel the craft down.
But like hydrodynamic shapes among vertebrates, evolution is constrained by the inherited architecture and by what works in those domains, hence convergence in some cases, and a rich diversity in others.
Zach: Yes, similar problems with a small number of solutions leads to convergent evolution, like the convergence between the hydrodynamic shapes of the vertebrates fish and dolphins.
Yes, similar problems with a small number of solutions leads to convergent evolution, like the convergence between the hydrodynamic shapes of the vertebrates fish and dolphins.
The convergence of the hydrodynamic shape among vertebrates is currently thought to be due to the environment/similar niche/even interactions:
Ecological consequences of major hydrodynamic disturbances on coral reefs.
Spider-Man velcro emulating geckos clothing dyes as vibrant as a peacock hydrodynamic swimsuits from sharks