Question

Name the smallest animal with heart and its heart rate

Answer 1

Alpitus Magnimus,a type of fruit fly has the smallest heart.I am not sure of the heart rate..sorry

Answer 2

The creature with the smallest heart on Earth is the Alpatus magnimius, a type of fruit fly that is less than 0.21 mm long. Insect hearts are narrow tubes along their backs that pump blood towards the insect's head. The world's smallest mammal is the Etruscan shrew (Suncus etruscus).