It's

  extremely

Adverb

  suspicious

Adjective

  that

Subordinating conjunction

  there's

  no

🙅

Determiner

  information

Noun

  about

Adposition

  brains

Noun

  that

Pronoun

  didn't

  come from

  a

Determiner

  brain

🧠

Noun

.

It's extremely suspicious that there's no information about brains that didn't come from a brain.

It's extremely suspicious that there's no information about brains that didn't come from a brain.