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Is reptiles warm or cold bloodded?
Most reptiles are "cold blooded", or ectothemic (and sometimes more specifically poikilothermic).
Do ectothemic animals control their body temperature?
Sometimes. Very small mammals will have small ears to help conserve their body heat. The exceptions to this are rabbits and hares. Also marine mammals (large and small) have lost their external ears for much the same reason. The exception to this is sea-lions who still have external ears. Large terrestial mammals have large ears as they have little need to conserve body temperature. The elephant has very large ears which they flap for the purpose of radiating away excess body heat.
Are swordfish endothermic or ectothermic?
Thestingrays are a family---Dasyatidae---of rays, cartilaginous fishes related to sharks. They are common in coastal tropical marine waters throughout the world, and several species are known to enter fresh water. Other types of rays also referred to as "stingrays" are the river stingrays (family Potamotrygonidae), the round stingrays (families Urolophidae and Urotrygonidae), the sixgill stingray (family Hexatrygonidae), and the deepwater stingray (family Plesiobatidae). For clarity, the members of the family Dasyatidae are sometimes called "whip-tail stingrays". While most dasyatids are relatively widespread and not currently threatened, there are several species (for example Taeniura meyeni, Dasyatis colarensis, D. garouaensis, and D. laosensis) where the conservation status is more problematic, leading to them being listed as vulnerable or endangered by IUCN. The status of several other species are poorly known, leading to them being listed as Data Deficient. To get it to the point, stingrays are Ectothermic.Okay?
