An airborne gull looks opportunistically at seals diving for fish in
the waters around Halibut Point.
Harbor seal |
Immersion transforms them for sleek sprints in the business
of fishing.
In their foreparts seals are well endowed for the underwater
hunt. All their sensors have been realigned proportionally, positionally,
purposefully for success.
Seals face an awkward moment when they capture a fish too
big to swallow whole.
A canny gull will jab not just at the fish but at the seal's head and eyes to get it to relinquish the meal.
An interwoven chain of predation is under way. Each link
pursues its survival in the constant adaptations to available energy and
intelligence that at any moment portray the biosphere.
Biologists apply the term 'kleptoparasitism' (stealing + freeloader)
to the gull's behavior toward the victimized seal. But unlike the fish the seal
gets another chance. And parasitism unfairly suggests a creepy, invasive
siphoning of assimilated life juices.
Seal pup and gull |
Seal pup with herd |
Nature. Even at its cruelest it is acceptable as these creatures are doing what is necessary to survi've.
ReplyDeleteThank you again Martin.