In a palace intrigue worthy of George R R Martin, a new study has shown that some bee workers are queenslayers who will rise up and kill their queen if she produces the wrong sort of male offspring. The throne can then be seized by one of her daughters, who will produce the right kind of male heirs – ensuring the survival of the bloodline.

Antarctica is a vast icy wasteland covered by the world’s largest ice sheet. This ice sheet contains about 90% of fresh water on the planet. It acts as a massive heat sink and its meltwater drives the world’s oceanic circulation. Its existence is therefore a fundamental part of Earth’s climate.

Earth is estimated to be around 4.5 billion years old, with life first appearing around 3 billion years ago.To unravel this incredible history, scientists use a range of different techniques to determine when and where continents moved, how life evolved, how climate changed over time, when our oceans rose and fell, and how land was shaped. Tectonic plates – the huge, constantly moving slabs of rock that make up the outermost layer of the Earth, the crust – are central to all these studies.

Flexible foxes can be found in almost any sort of terrain. Indeed, one species, the red fox or Vulpes vulpes, is the most widely distributed land carnivore of all, ranging from the Arctic to North Africa. And where its rivals stick to the countryside, these foxes have made themselves at home in modern towns and cities. Why is this?

May and June are typically peak months for tornadoes in North America. We asked Penn State meteorology professors Paul Markowski and Yvette Richardson to explain why tornadoes form, how to stay safe if you’re near one and whether climate change is affecting tornado patterns.

It might seem unlikely, but tiny grains of minerals can help tell the story of early Earth. And researchers studying those grains say that 4.4 billion years ago, Earth was a barren, mountainless place, and almost everything was under water. Only a handful of islands poked above the surface.

Insects navigate in much the same way that ancient humans did: using the sky. Their primary cue is the position of the sun, but insects can also detect properties of skylight (the blue light scattered by the upper atmosphere) that give them indirect information about the sun’s position. Skylight cues include gradients in brightness and colour across the sky and the way light is polarised by the atmosphere. Together, these sky “compass cues” allow many insect species to hold a stable course.

Most people assume if you’re unlucky enough to be bitten by a crocodile, then a severed limb or other severe trauma is all you have to worry about. But new research is emerging about serious infections you can catch from a bite that might kill you instead.

They say that trees live for thousands of years. Like many things that “they” say, there is a germ of truth in the saying (even though it is mostly false).

The appearance of vivid bluebell carpets in British woodlands is a sure and spectacular sign of spring. Bluebells – Hyacinthoides non-scripta (L.) Chouard ex Rothm – are Britain’s favourite wildflower and particularly fine carpets attract visitors to well-known sites such as Kew Gardens in London and Coed Cefn in Powys, Wales.

One of the biggest modern myths about agriculture is that organic farming is inherently sustainable. It can be, but it isn’t necessarily. After all, soil erosion from chemical-free tilled fields undermined the Roman Empire and other ancient societies around the world. Other agricultural myths hinder recognizing the potential to restore degraded soils to feed the world using fewer agrochemicals.

On a moonless night, light levels can be more than 100m times dimmer than in bright daylight. Yet while we are nearly blind and quite helpless in the dark, cats are out stalking prey, and moths are flying agilely between flowers on our balconies.