It's time for another BIG and BRILLIANT adventure into the world of science on this week’s Science Quest!

In Science in the News, butterfly numbers across the UK are in decline, bird experts are warning people not to use feeders this summer, and Dr Thomas Clements from the University of Reading explains how a 300-million-year-old fossil, once thought to be an octopus, was misidentified and what it really reveals about life on Earth long ago.

It’s time for your questions too. Owen wants to know what the deadliest animal is, and Neil Lambert from King’s College London tackles a big, mind-bending question from Atlas: why is the world 3D and not 2D?

Dangerous Dan introduces the great grey owl, a silent hunter with incredible senses.

Then we step into the Brain Box with Professor Jonathan Tennyson from University College London to explore exoplanets and discover what lies beyond our Solar System.

Plus, in Galaxy Gala, we head to Deep Space High to learn all about stars and what makes them shine.

What we learn about:

• Why butterfly numbers are falling in the UK
• Why bird feeders might be risky in summer
• A fossil that scientists got wrong
• What the world's deadliest animal is
• The great grey owl
• What exoplanets are and where they exist

All that and more on this week’s Science Quest!