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Have you ever heard of a “Loggerhead Turtle?” Have you ever wondered where the expression “at loggerheads” comes from? Being “at loggerheads” means being in disagreement with someone else. Well, the expression has nothing to do with a Loggerhead Turtle or even with logging trees in the forest. It is a colloquial expression from the United Kingdom referring to a “block head” or a stupid person. The first known use of the phrase in print is in Francis Kirkman’s, The English Rogue, 1680 – “They frequently quarrell’d about their Sicilian wenches, and indeed… they seem… to be worth the going to Logger-heads for.”
Cold-blooded” animals (ectotherms) have their body temperature regulated by interactions with the environment, while “warm-blooded” (endothermic) animals have an internal temperature kept constant by homeostatic (stability-ensuring) mechanisms. “Cold-blooded” animals include all animal groups, except mammals and birds, the only two groups of animals that are warm-blooded.
Warm-blooded creatures try to keep the inside of their bodies at a constant temperature. They do this by generating their own heat when they are in a cooler environment, and by cooling themselves when they are in a hotter environment. To generate heat, warm-blooded animals convert the food that they eat into energy. They have to eat a lot of food, compared with cold-blooded animals, to maintain a constant body temperature. Only a small amount of the food that a warm-blooded animal eats is converted into body mass. The rest is used to fuel a constant body temperature.
Cold-blooded creatures take on the temperature of their surroundings. They are hot when their environment is hot and cold when their environment is cold. In hot environments, cold-blooded animals can have blood that is much warmer than warm-blooded animals. Cold-blooded animals are much more active in warm environments and are very sluggish in cold environments. This is because their muscle activity depends on chemical reactions which run quickly when it is hot and slowly when it is cold. A cold-blooded animal can convert much more of its food into body mass compared with a warm-blooded animal
At its fastest, on average, a snail travels 1.3 cm per second or 78 cm (2.56 feet) in a minute. An average fit adult human being can walk between 3 and 5 km per hour. So, while a person has covered 3 to 5 km (9,842 to 16,404 feet) in one hour, a Snail would (if he could) have travelled 46.8 metres.(154 feet). The pace of a snail in one hour is just 1.56% of the pace of a human being, or 98.5% slower than a human being.
A healthy and fit average size adult cat can sprint at 31 miles per hour, or about 50 kilometres per hour. Not bad, hey? Not that he/she would run at top speed for one hour, because the cat’s muscular strength means the cat can only put on short bursts of speed, but it is pretty good for running after ankles! You can go to the book source of this info – here .