Complex sentence: The brown recluse spider is resilient, and can tolerate up to six months of extreme drought and scarcity or absence of food, most notably observed on one occasion to survive in controlled captivity for over five seasons without food.
Split into simpler sentences: The brown recluse spider is resilient and can tolerate up to six months of extreme drought and scarcity or absence of food. On one occasion it survived in controlled captivity for over five seasons without food.