“Unfortunately, from a scientific point of view, we can’t really evaluate what was in the documentary because they offered no data from the analysis whatsoever,” former director of Spain’s National Institute of Toxicology and Forensic Sciences, Antonio Alonso, told Manuel Ansede and Nuño Domínguez at the Spanish news service, El País.
The sentence structure suggests that in OPs sentence the monkey is the subject and part of the sentence is missing.
Like for example,
“The monkey – I’m wondering if it can see my ears? – is eating a banana.”