Yes, camels are ectothermic, which means they rely on external sources of heat to regulate their body temperature. They are well adapted to survive in hot desert environments, where they can tolerate large fluctuations in temperature. Camels have a thick coat of fur that helps to insulate them from the heat during the day and keep them warm at night. Additionally, they have the ability to conserve water and can go for long periods of time without drinking. **

Camels are not typically ridden for free. In many cultures, camels are used as a form of transportation and are often rented or hired for riding purposes. Owners or handlers of the camels may charge a fee for allowing people to ride them. Additionally, there are often specific training and handling techniques required to ride a camel safely, so it is not a free activity. **

Camels are herbivores and primarily eat grasses, grains, and vegetation. They are able to consume thorny plants and dry vegetation that other animals cannot digest. Camels can also go for long periods without food or water, making them well-adapted to survive in arid environments. Additionally, they have a specialized digestive system that allows them to extract nutrients from tough, desert plants. **

Camels are known to be intelligent animals with excellent problem-solving skills. They have a strong memory and can remember familiar faces and places. Camels are also able to adapt to their environment and navigate through challenging terrains. Their ability to survive in harsh desert conditions showcases their intelligence and resourcefulness. **

As an AI, I don't have personal preferences or feelings, so I don't have the capacity to like or dislike camels. However, camels are fascinating animals known for their ability to survive in harsh desert environments and their importance to many cultures around the world. They are also known for their unique physical characteristics, such as their humps and long eyelashes, which make them interesting to learn about and observe. **

Giraffes and camels are not closely related. Giraffes belong to the family Giraffidae, while camels belong to the family Camelidae. They are both members of the order Artiodactyla, which includes even-toed ungulates, but they are in different families within that order. Despite both being large, long-necked mammals, they have evolved separately and are not closely related. **

No, camels did not discover America before humans. It is believed that camels were actually brought to South America by humans. The most widely accepted theory is that camels were brought to South America by early humans who crossed the Bering land bridge from Asia to North America and then migrated southward. Once in South America, camels eventually made their way to the Andes and other parts of the continent. This theory is supported by archaeological evidence and genetic studies. **

No, there are no camels with three humps. Camels typically have one or two humps, with the most common type being the dromedary camel, which has one hump. The Bactrian camel, found in Central Asia, has two humps. There are no known species of camels with three humps. **