Complex sentence: The Rough-Skinned Newt produces the most toxins of all newts, an ammount as large as a pin-head of this toxin is enough to kill an adult human if ingested.
Split into simpler sentences: The Rough-Skinned Newt produces the most toxins of all newts. Even an ammount as large as a pin-head of this toxin is enough to kill an adult human if ingested.