Although the Ediacaran fauna are the first mass-produced multicellular organisms, their appearance on Earth dates back to about 600 million (0.6 billion) years ago, at the very end of the Precambrian. However, we know that multicellular organisms appeared on Earth much earlier. These include Grypania from 2.1 billion years ago, interpreted as an algal thallus, and Horodyskia, which appeared between 1.5 and 0.9 billion years ago, sometimes interpreted as a fungus, but sometimes as a bacterial colony.

When visiting the Baltic coast, we have the opportunity to meet three species of mammals from the seal family, belonging to three genera. These are: the grey seal (Halichoerus grypus), the harbor seal (Phoca vitulina) and the ringed seal (Pusa hispida).

On May 31, we celebrate the White Stork Day. The white stork (Ciconia ciconia) is an impressive bird that has symbolized happiness, fertility and the Polish countryside in our culture for centuries. Our country is one of their favorite places - every fourth stork in the world builds its nest here. Currently, the number of stork pairs in Poland is estimated at around 40,000. Unfortunately, despite this praiseworthy statistic, the number of nesting storks is decreasing year by year. The reasons are climate change, the disappearance of meadows and inappropriate human behavior, such as littering the environment.

Last week we wrote about parasitic fungi that turn their victims into zombies and infect much more effectively than those in the game and the series. If you thought that was all nature could do, we invite you to read this article.

In nature, there are fungi that turn their victims into mindless zombies programmed for only one purpose: to spread the parasite's spores. They are so effective that the truth is much more terrifying than in the series "The Last of Us". At least for the hosts, among which fortunately there is no human. For now.