Did Eating Insects Shrink These Dinos?

From a channel Lumen includes in full: PBS Eons explains the history of life on Earth (palaeontology, evolution, extinctions) with scripts written by and checked with palaeontologists and sources listed for each episode.

A 10-minute video from PBS Eons's catalogue; the title names its topic.

Video by PBS Eons, played through YouTube's embedded player.