The animals you are most likely to see always and everywhere are Ants (Hormigas) of every size and character. Ants in Costa Rica represent an estimated 25% of the terrestrial animal biomass.
Ants are diligent workers and can lift several times their own body weight. Even more amazing is their highly developed social organization. Their states are super-organisms where the individual is just a tiny part of the whole body. Colonies of ants can sometimes consist of millions of individuals. To communicate between themselves they use scented chemicals, known as pheromones.
Leaf cutter ants (Zompopos)
Certainly look cute when you see them in long lines, carrying pieces of flowers and leaves. The ants can lift 10 times their own body weight. In a garden you nevertheless don’t want them as they can do great damage to your flowers and crop. However, leaf cutter ants are gardeners themselves: they don’t eat the plant materials, instead they bring it to their underground gardens to cultivate a special, bread like fungus which they consume.
The mounds of leaf cutter ants can grow very quickly to a considerable size with several million of members. The societies of leaf cutter ants are the largest and most complex on earth – next to humans.
From their base camp Army Ants (Guerreros) undertake raids into the neighbourhoods, killing and taking home insects and small animals. Their main prey are the nests of other ants whose eggs and larvae they steal to feed on their own offspring.
Should army ants visit your house consider yourself lucky as they will clean it from scorpions, ants and cockroaches.
Motmots, Anis and other birds take advantage of the army ants by following the swarm and picking off insects that try to escape.
These wasps had built their nest right at the side of my bedroom window. Coincidentally the army ants showed up and helped me to get rid of it. The job kept them busy for 2 days.