In order to get the best car deal, buy a car toward the end of the year, as in October, November or December, said Benjamin K. Glaser, features editor for DealNews.com, a website devoted to coupons and deals across the web. However, end-of-model year doesn't always mean the end of the calendar year.
Nordgreen said that the behavioural differences they found in response to uncomfortable temperatures showed that fish feel both reflexive and cognitive pain. The experiment shows that fish do not only respond to painful stimuli with reflexes, but change their behavior also after the event, Nordgreen said.
How Stress Affects Fish. Stress is caused by placing a fish in a situation which is beyond its normal level of tolerance (Francis-Floyd, 1990). Stress makes it more difficult for the fish to regulate the normal day-to-day physiological functions the homeostasis that are essential to its life.