In some reptiles like turtles, crocodiles and alligators, sex determination is regulated by environmental factors.

Scientific name of crocodile is CROCODYLINAE

Organism with Environmentally Determined Sex:

The Crocodile is an organism whose sex is determined by the natural environment. One example is the American alligator (Alligator mississippiensis).

Environmental Sex Determination:

- In crocodiles, the sex of the offspring is determined by the temperature at which the eggs are incubated.
- Higher temperatures during incubation result in more males, while lower temperatures produce more females.
- This phenomenon is known as temperature-dependent sex determination (TSD).

Mechanism of TSD:

- The exact mechanism of TSD in crocodiles is not fully understood, but it is believed to involve the influence of temperature on sex chromosomes during early development.
- The temperature at which the eggs are incubated triggers specific pathways that lead to the differentiation of male or female gonads.

Importance of TSD in Crocodiles:

- TSD allows crocodiles to adapt to changing environmental conditions, such as climate change.
- It provides a natural mechanism for maintaining a balanced sex ratio within the population.
- Understanding TSD in crocodiles is crucial for conservation efforts aimed at protecting these species and their habitats.

In conclusion, the American alligator is an example of an organism with environmentally determined sex, where temperature plays a critical role in determining the sex of the offspring. This unique trait highlights the adaptability of crocodiles to their natural environment and emphasizes the importance of conservation strategies that consider temperature-dependent sex determination.