What is the weakest animal?

The term "weakest" can be interpreted in different ways, such as physical strength, immunity, or resistance to certain diseases. In terms of physical strength, there are many animals that are weaker than others, and it's hard to pinpoint one specific animal as the "weakest." However, some examples of small and physically weak animals include:

The Etruscan shrew, which is the smallest mammal in the world, weighing less than a penny.

The bumblebee bat, which is the smallest bat in the world, weighing less than a penny.

The fairyfly, which is the smallest insect in the world, measuring less than 0.15 millimeters long.

Also, it's worth noting that physical weakness is not always a disadvantage, as many animals have developed unique adaptations and strategies to survive in their environments.

It's also worth noting that the term "weakest" is subjective and can be interpreted in many ways, as every living being is unique and has its own way of adapting to the environment. Different animals have different strengths and weaknesses, and it's important to remember that every species has a role in the ecosystem.