Without enough oxygen, fish cannot live and without enough of it, their growth, reproduction, and movement can all be stunted ...

Without mitochondria, the organism cannot rely on oxygen for energy ... adapted to living inside the bodies of fish as a parasite. As it evolved, it simplified its genetic makeup and lost many ...

Dead fish were removed from a stormwater pond in Waterloo on Wednesday by city crews. The exact cause of the die-off is ...

A research team led by the Leibniz Institute for Baltic Sea Research Warnemünde (IOW) was able to revive dormant stages of ...

but without much oxygen. Cold Creek is prone neither to freezing during the winter nor to warming during the summer. The oxygen problem long has been addressed, enough at any rate, to suit fish.

Fish can become easily stressed in winter due to low energy reserves because feeding is at a minimum in winter. They are then less able to handle low oxygen and temperature swings. That could ...

Unlike land animals, fish get their oxygen from water ... allowing the frog to breathe underwater without gills. Grasshoppers are like us flies and other insects. They don’t use their noses ...