In recent weeks, Duende (9) at Basel Zoo has gained a lot of weight and now looks like a mini bodybuilder. Duende is the dominant squirrel monkey in the twenty-strong group. Every year during the mating season, it is not only his physique but also his behaviour which changes: he is currently more aggressive than usual, and is constantly checking whether the females are ready to mate.
Between the shrill, colourfully patterned coral fish in Basel Zoo’s Vivarium also live many inconspicuous species which almost always go unspotted by visitors. This is a genuine shame, as even the most unimposing creatures often have very interesting biology. The majority are little ‘aquarium helpers’, like the jewelled blenny from the reefs of the tropical Indo-Pacific.
Branco (6) and Sabio (5) are two male woolly monkeys who arrived at Basel Zoo on 28 October. The pair are currently getting used to their new surroundings: Sabio has been rather shy thus far, whilst the older Branco is likely to take a dominant role over his counterpart.