Answer:

Mosqiuto

Type of interaction:

The physiological status of the mosquito (the female’s need to feed on blood in order to develop her eggs), the innate presence of the mosquito towards a host (mosquito species may have very clear preferences for humans while others are more generalist or even that they do not feel any attraction for humans), and the abundance and density of mosquitoes (the probability of interaction increases when there are many mosquitoes concentrated in an area).

Horse

Type of interaction:

Horses communicate with humans primarily through body language. ... A horse may communicate with a human through facial expressions, vocal cues, or body language. Many equine experts believe that these forms of communication go both ways. Your horse may respond to your facial expressions, vocal cues, or body language.