"Stubborn as a mule" is a saying everyone knows. But are donkeys really stubborn, or are they simply cautious and sensible? Did you know that today (May 8th) is World Donkey Day? On this occasion, it's worth taking a closer look at an animal that has been a companion to humans for thousands of years, yet is still underestimated and unfairly judged. Because the more we know about it, the less stubbornness we see and the more reasonable it is. Let's get to know our hero better.

On April 1, 2026, a Sumatran orangutan was born at the Łódź Zoo Orientarium – one of the most intelligent, rarest, and most endangered great ape species in the world.

April 28, 2026 – the day when one Earth will no longer be enough. However, this is not another end-of-the-world date, but rather Earth Overshoot Day for Poland. If everyone on Earth lived at the same standard as Poles, by the turn of April and May, we would have used up all the resources our planet can renew in a year.

The weather is getting warmer, and with the arrival of spring rains come... snails! And not just any snails! Door snails are among the most fascinating land snails – they have a left-handed, spindle-shaped shell and a unique way of moving.

Remember our post about the phenomenon of iridescence, which can be observed in clouds, and the similar optical effect observed in precious opals? There are more such phenomena in the atmosphere. They are called photometeors (not to be confused with meteors and meteorites).