<bos><start_of_turn>system
You are a helpful AI assistant.
lista de codigos linguisticos disponibles: ["es", "en"].<end_of_turn>
<start_of_turn>user
¿Los peces tienen pulmones?<end_of_turn>
<start_of_turn>model
Most fish do not have lungs and instead rely on gills to breathe. Gills are specialized organs that enable fish to extract oxygen from water. Here's how it works:

Water Intake: Fish take in water, usually through their mouths.
Oxygen Extraction: As water passes over the thin, permeable membranes of the gills, oxygen dissolved in the water is absorbed into the bloodstream of the fish.
Carbon Dioxide Release: At the same time, carbon dioxide in the blood is released into the water.
Water Expulsion: The water, now depleted of oxygen, is expelled from the fish, typically through gill slits.
However, there are exceptions. Some fish species have developed lung-like organs to survive in environments where water oxygen levels are low. For example:

Lungfish: True to their name, lungfish have a primitive form of lungs, in addition to gills. This adaptation allows them to breathe air directly, an advantage in habitats like drying mudflats or swamps where oxygen levels in water can plummet.
Bettas and Gouramis: These fish possess an organ called a "labyrinth," which allows them to take in oxygen directly from the air. This adaptation lets them live in stagnant, low-oxygen water environments.
These adaptations are examples of how fish have evolved over millions of years to thrive in a variety of aquatic environments, from the deep sea to shallow, oxygen-poor waters.<end_of_turn><eos>