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Fish do sleep, according to the criteria for behavioural sleep. [2] As fish are a hugely diverse taxon, with over 30,000 described species of fish, the sleep behaviours and characteristics differ between species. For a long time, researchers overlooked sleep behaviour in fish and other ecothermic taxa, [3] as the definition of sleep included ...
Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...
Like other fish, betta fish do "sleep." But fish do not sleep in the same way mammals do. Fish rest by slowing down their activity and metabolism, the National Oceanic and Atmospheric ...
Some animals seasonally go into long periods of inactivity, with reduced body temperature and metabolism, made up of multiple bouts of torpor. This is known as hibernation if it occurs during winter or aestivation if it occurs during the summer. Daily torpor, on the other hand, is not seasonally dependent and can be an important part of energy ...
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The spawning fish select sandy or pebbly shallows and deposit their eggs primarily between sundown and midnight. Females release eggs in batches of about 30,000 eggs, though very large fish deposit an estimated as many as 156,000 eggs. Total annual egg production is 200,000–600,000 eggs per female, with larger fish producing more.
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The researchers focused on how much processed red meat the participants ate, classifying people’s consumption habits as low (under 0.1 servings a day), medium (between 0.1 and 0.24 servings a ...