Neurotoxin

Lead is a potent neurotoxin.

Pseudo-nitzschia produces a neurotoxin called domoic acid, which can build up in shellfish, other invertebrates, and fish. This can lead to illness and death in a variety of birds and mammals that consume them.

He presses just the right part of the snail's foot to encourage it to secrete a neurotoxin directly onto a skein of cotton yarn.

When he catches one, he presses just the right part of the snail's foot to encourage it to secrete a neurotoxin directly onto a skein of cotton yarn.

There were stretches of days when the lakes were closed because of the algae. It sometimes secreted neurotoxins that could be fatal.

Among those who think of fugu as merely a distant delicacy, knowledge rarely goes beyond the fish’s infamous trait: In the most delicious species, the innards are suffused with the neurotoxin called tetrodotoxin (TTX).