Why did carnivorous plants start eating insects?

Why did carnivorous plants start eating insects?

Carnivorous plants have aroused a certain fascination in the plant world with their appearance and habits. Think mainly about all the colours but also the fact that they eat meat (insects). Have you ever asked yourself why a carnivorous plant actually started eating insects? In our blog, we will delve deeper into the world of the carnivorous plant and explore. After all, we would like to discover with you why a carnivorous plant actually eats insects.

A carnivorous plant, you may also know by the name carnivorous plant, evolved in an area where the soil is very scarce in nutrients. Think, for example, of a swamp. These areas, for instance, are poor in nitrogen, something plants desperately need. So the fact that this cannot be found in these areas has meant that plants have had to adapt and evolve necessarily, or disappear in the coming years. So in this case, the carnivorous plant has chosen to evolve and no longer get its nutrients from the soil but from insects and in some cases even smaller mammals, such as a mouse.

What drives an organism to evolve?

With its unique evolution, the carnivorous plant is a beautiful and fascinating testament to how living organisms can adapt to their environment. This for the sake of their survival. We are now going to give you a few examples of factors that contributed to the evolution of this plant.

  • Nutrient deficiency: In an area with nutrient-poor soil, such as marshes, a carnivorous plant has evolved to such an extent that it can obtain nutrients from alternative sources.
  • Insects as food: An insect is incredibly rich in nitrogen, but also in other nutrients which are incredibly important for a plant's growth. Catching and digesting these insects actually replaces the lack of nutrients in the soil.
  • No direct competition: what do we mean by this? In nature, plants always compete with each other just to get as many nutrients as possible from the soil and grow. A carnivorous plant is not competition for the general plant as it gets its nutrition from insects and most plants will not be on nutrient-poor soil.

The traps of the carnivorous plant

Over the years, the carnivorous plant has adapted to any nutrient-poor environment, producing an awful lot of different traps. This, of course, to keep surviving and create the best conditions. We are going to take a look at these traps:


  • A sticky trap: Consider plants such as the Sundew. These plants have sticky leaves with which they hold the insects. When the insect is trapped, they fold their leaves completely around the insect and the digestion process can begin.
  • A slap trap: Perhaps the most iconic carnivorous plant, the venus flytrap also known as the Dionaea Muscipula, uses a slap meganism to catch its prey. The venus flytrap has tiny trigger hairs in its mouths. When these are touched twice within 20 seconds, the trap claps shut. Not touched twice within 20 seconds? Then the venus fly trap resets itself. For this reason, it is also said that this plant can count.
  • The cage trap: In this case, think of the trumpet cup plant. These plants have created a trap which looks like a long tube in which insects slide down and are digested.

The digestive process

Now, besides capture, comes the most important process for any carnivorous plant, digestion. This process is of course different for each carnivorous plant, but we will give you a general idea of what happens next:

The trap closes: Once an insect has worked its way into a position where it could make another attempt to escape, the plant closes its trap. This stops any escape attempt by an insect.

Secretion of digestive enzymes: During the digestion process, the plant releases enzymes that slowly break down the insect. These enzymes dissolve the soft parts of the insect and allow the plant to absorb these nutrients.

Absorption of nutrients: The nutrients broken down by the enzymes are absorbed by the leaves of the plant.

Reopening the trap: After digestion, the plant slowly opens its trap again for the next prey.

What is the carnivorous plant's role in the ecosystem?

A carnivorous plant plays an important role in their ecosystem. Together with other plants and animals, they regulate the insect population. They also provide a small and unique habitat for certain insects and other small animals. For example, consider a carnivorous plant with a trap, filled with water, which other animals can feast on again.


The world of the carnivorous plant is a fascinating one, we at understand this all too well and are happy to share it with you. After all, the world of a carnivorous plant is a wonderful example of evolution and survival skills. Carnivorous plants continue to amaze and inspire us with their unique way of life and their important role in nature.

Leave a comment

*Uw e-mailadres wordt niet gepubliceerd

* Required fields

Compare products Delete all products

You can compare a maximum of 3 products

    Hide compare box 4,9 / 5 - 260 Reviews @ Google mijn Bedrijf
    Please accept cookies to help us improve this website Is this OK? YesNoMore on cookies »