With a few exceptions, all mammals and birds are warm-blooded, and all reptiles, insects, arachnids, amphibians and fish are cold-blooded. What does it mean to be warm-blooded or cold-blooded? The temperature of an animal's blood is related to its body temperature.
coolcosmos.ipac.caltech.edu/image_galleries/ir_zoo/cold... coolcosmos.ipac.caltech.edu/image_galleries/ir_zoo/coldwarm.html
Fish question: Are fish cold-blooded? some are ... Fish are ectothermic or cold blooded? True or false are all fish cold blooded? Why do you suppose fish are cold-blooded? What is not cold-blooded fish bird or salamander?
wiki.answers.com/Q/Are_fish_cold-blooded wiki.answers.com/Q/Are_fish_cold-blooded
One reason might be the 'false economy' of having to heat up their bodies. Approximately 80% of human energy goes towards heating our bodies to a stable temperature. However, for fish and reptiles to do this, it may not have been a evolutio...
http://wiki.answers.com/Q/Why_are_fish_cold-blooded
This is a perfectly reasonable question and yes, they are cold blooded. Like reptiles, fish cannot regulate their own body temperature, instead they simply move into water of the correct temperature. For example if the water is too warm the...
http://uk.answers.yahoo.com/question/index?qid=20081202...
Generally speaking the answer is yes, but sometimes it is no. Most fish ectothermes meaning their core body temperature is normally close to that of their environment. However this does not mean that they are completely complacent about bod...
http://www.earthlife.net/fish/tregulate.html
"Cold-blooded" animals, including fish, grow throughout their lives, unlike mammals which reach an adult size and maintain it. This continuous growth poses some challenges to the nervous system: how can an animal continue to accurately process sensory information while growing?
www2.cedarcrest.edu/academic/bio/aettinger/res.html
Scientists are trying to work out how the cold-loving creatures manage to live in both places, separated by a barrier of thousands of miles of warm waters. Polar bears, after all, only live in the Arctic while penguins are confined ... wow that is amazing that there are fish that can survive in such extreme cold habitats...
blogs.reuters.com/environment/2009/02/16/antarctic-ice-... blogs.reuters.com/environment/2009/02/16/antarctic-ice-fish-redefines-cold-blooded/
Cold-blooded animals have a body temperature close to the temperature of their surroundings. ... Fish live and breathe in water. They use "gills" to take oxygen from the water. All fish lay their eggs in the water. Most fish have fins to help them swim and eyes located on the sides of their head. Fish are usually covered...
www.mmem.spschools.org/grade3science/3.Lifecycles!/wrmc... www.mmem.spschools.org/grade3science/3.Lifecycles!/wrmcldbl.htm
More numerous than any other groups of vertebrates except for fish. ... 1. Most birds are carnivorous, feeding mostly on insects. Many spp. feed upon worms, mollusks, crustaceans, fish, frogs, reptiles, mammals, and even other birds.
www.ossm.edu/biology/birds.htm
The body temperature of most fishes is the same as that of their surrounding water. ... As most aquarists know, fish are cold blooded animals. This simply means that they have no built-in biological means of controlling their own body temperature and therefore assume the temperature of the water in which they find themselves.
www.aquarticles.com/articles/breeding/McFarlane_Warm_Bl... www.aquarticles.com/articles/breeding/McFarlane_Warm_Blooded_Fish.html