I think it's because birds need a very fast metabolism to produce enough energy to fly, and a higher body temperature will cause chemical reactions to happen more quickly. The difference isn't that big. Placental mammals (most mammals) have a typical body temperature of about 99 degress F/37 degrees C, and birds have a typical body temperature of about 105 degrees F/41 degrees C.
Because the like big black bootay, like me.
Mammals and birds.
All mammals and Birds are warm blooded for example humans dogs seals etc
They can both regulate their own body temperature (endothermic).
Conversion of energy to heat during metabolism
J. Bligh has written: 'Temperature regulation in mammals and other vertebrates' -- subject(s): Birds, Body temperature, Mammals, Physiology, Regulation
Yes. A chicken is a bird; like mammals, birds are endotherms and generate their own body heat.
For keeping there body at optimum temperature for caring out enzyme reactions
To be honest i have no idea what a steady body temperature of verdibrates are. My advice is to go to www.google.com and look it up or www.wikipedia.com or www.ask.com and look it up... cause i got nothing!!
it is an animal that's body temperature varies according to the temperature of its surroundings mainly fish and reptiles, it does not apply to birds or mammals as they are able to regulate there body temperature, were as reptiles for example will be the temperature of there surrounding this is why they have to bask in the sun to get warm.
Like mammals, bird's internal body temerature is regulated to remain a constant temperature.
An Endotherms can regulate their body temperature by producing heat through metabolic processes. Birds and mammals are Endotherms as well as some fish.
I don't fully understand the question, but from what I gather the two types are birds and mammals. Sorry if this isn't correct. Endothermic means self-regulating body heat by the way.