* Smaller dolphins: Species like the common dolphin can weigh between 100-150 pounds (45-68 kg).
* Medium-sized dolphins: The bottlenose dolphin is a popular example, weighing 200-400 pounds (91-181 kg).
* Larger dolphins: The Atlantic white-sided dolphin can weigh up to 400-500 pounds (181-227 kg). The killer whale (or orca), while technically a dolphin, is much larger and can weigh 8,000-12,000 pounds (3,600-5,400 kg).
Factors that influence dolphin weight:
* Species: As mentioned, different dolphin species have different sizes.
* Sex: Males tend to be larger than females.
* Age: Dolphins continue to grow until they reach maturity.
* Diet: A healthy diet and access to food can impact a dolphin's weight.
* Geography: Dolphins living in different environments may have different sizes due to variations in food availability and other factors.
It's important to note that these are general estimates, and individual dolphins within the same species can vary in weight.