A picnic beetle! 🪲 They are called picnic beetles because they often fly at you outdoors. After the end of the Second World War, Glischrochilus quadrisignatus spread from Berlin to almost all of Europe. They originally come from North America, where they already played a role as a plant pest, and were then probably introduced to Germany via supplies from the Western Allied airlift. While in America the damage to corn, tomatoes and various types of fruit (apples, pears, apricots, peaches, raspberries) can be quite high, in Europe the species has so far only appeared as a corn pest to a much lesser extent. The beetle bites into the young, still milky grains and eats them. Well, then fly on, little conqueror!

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This green shield bug (Palomena prasina) has strayed into the stairwell... 🦸🪲

☠️ There was a risk of spiders, dehydration or drowning from the neighbor's dog's saliva.

🕸🕷🏜🐶💦

These and numerous other dangers lurk in the everyday life of this urban insect. 🚗🏡🌳

It lives in trees and bushes and sucks their sap.Actually, everyone in Germany should know it, with its bright green color and smelly secretion.

🛩🪂 It often just crashes into somewhere. Its flying abilities can certainly be described as enduring, but it lacks speed, precision and maneuverability.

☝️🔒My fingerprint has been manipulated.

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🌤🌸🦗🪻 A fragrant summer sun spot for a tiny bush-cricket (Phaneroptera species) 😊

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I am a great ape! 🐵🍌

Even in my childhood I was interested in the systematic classification of living things. I was given a set of a few thousand information cards. There was a picture on the front and information on the back. There was also a large index card box. I sorted all living things according to their relationship. Humans and their ancestors were listed in a separate family, which was next to the great apes. However, this made no sense to me. The fact that chimpanzees are more closely related to humans than to orangutans told me that they must at least be in the same family, or each should have their own family.

When I was at school, humans were not considered great apes. The idea that humans are just apes is still met with a lot of rejection today. But not in science, where, based on genetic research, humans are listed in a common family, the great apes (Hominidae), together with the orangutan, gorilla and chimpanzee species.

Many people, even those who are inclined towards scientific explanations of evolution, have a problem with this because they see it as a threat to the uniqueness and specialness of humans.

I often argued with my mother that humans are animals. She - who studied biology - was strictly against this. She said that humans have unique characteristics and abilities and that the mind is something that separates us from animals. A widely held view - still today. I do not share this. Humans are animals and, like every animal species, humans have special abilities. The mental abilities that were once only attributed to humans have long been observed in other animal species - albeit in different ways: self-knowledge, logic, language, culture, grief and more. But the idea that animals are similar to us in their perception and thinking is a tough pill for humanity to swallow.

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Drop it like it's hot 💩

A mirid bug (Deraeocoris ruber) defecates on a hemp leaf. In fact, insect excrement is about as warm as its surroundings.

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Seeing in the Dark and the Green: How Eyes and Leaves Share a Lighty Secret

The world of biology reveals surprising connections, and the human eye and a seemingly ordinary leaf share a fascinating one. Both organs rely on sophisticated light-sensing mechanisms to function effectively in their environments, despite their vastly different purposes.

Within the human eye, the retina houses two crucial photoreceptor cell types: rods and cones. Rods, responsible for low-light vision, utilize rhodopsin, a specialized protein, to capture even the faintest light signals. Cones, responsible for color vision, rely on various forms of iodopsin to differentiate colors in bright light conditions. Both rhodopsin and iodopsin function by undergoing a shape change upon encountering light, triggering a biochemical cascade that ultimately translates light energy into electrical signals the brain interprets as vision.

Plants exhibit a similar strategy. Nestled within their leaves lies phytochrome, a remarkable molecule that, like its counterparts in the eye, acts as a light receptor. Phytochrome exists in several states depending on the specific wavelengths of light it absorbs. By sensing variations in light intensity and spectrum, phytochrome provides the plant with vital information about its surrounding environment. This information plays a critical role in processes like photosynthesis, where plants utilize sunlight as an energy source, and regulates growth patterns based on light availability.

In both the eye and the plant, the photosensors function together with chromophores: retinal in the eye and phytochromobilin in the plant.

This unexpected parallel between the human eye and the leaf underscores a fundamental principle in biology – the ability to detect light is a powerful evolutionary advantage. By harnessing the power of light, both humans and plants gain the ability to navigate their environments, grow, and thrive.

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