By irritating the cortex of the cerebral hemispheres, it is possible to cause seizures of epileptic seizures in many animals. Their seizure can consist of a prodromal period, clonic and tonic stages, and a subsequent coma. This typical seizure is extremely easy to get in a monkey. Without big difficulties, it can be reproduced in a dog, rabbit, cat, guinea pig, horse, donkey, rat, calf, goat and even a sheep. Attempts to induce convulsions in birds, irritating their large hemisphere, remained fruitless. Similarly, it was not possible to achieve epileptic seizures in fish, reptiles and amphibians.