And: on the 'r' side of the r/K reproductive strategy. Whales are literally the exemplar of K-selection, that is a very small number of high-quality offspring.
Whale lifespans are long, populations and fecundity / brood sizes are small, sexual maturity relatively late, and childhood mortality relatively high. All of these make for slower rather than more rapid evolution.
Species such as krill (on which many whales feed) are far more likely to evolve rapidly in the face of increasing selection pressures. Whales might well find themselves boxed into an inescapable evolutionary corner.
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And: on the 'r' side of the r/K reproductive strategy. Whales are literally the exemplar of K-selection, that is a very small number of high-quality offspring.
<https://en.wikipedia.org/wiki/R/K_selection_theory>
Whale lifespans are long, populations and fecundity / brood sizes are small, sexual maturity relatively late, and childhood mortality relatively high. All of these make for slower rather than more rapid evolution.
Species such as krill (on which many whales feed) are far more likely to evolve rapidly in the face of increasing selection pressures. Whales might well find themselves boxed into an inescapable evolutionary corner.