No. Animals don't think, because thinking requires language, based on it conceptual thinking and related brain circuitry which animals still didn't evolve. Signaling systems and elaborate warning cries do not account for a language. Animals only feel. They have emotions, environmental clues and heuristics, everything but a language and hence no thinking by definition. That is exactly what some call non-verbal,'animal…
I'm not a vegetarian, I enjoy steak and pork chops a lot.
But I think animals, especially cows and pigs, are more conscious of their existence than we like to think.
I tend to agree that speech plays a central role in how our thoughts are organized, but I think the importance of being able to articulate oneself /with language/ as a measure of consciousness and intelligence is generally overestimated.