Biology resources for teachers

Every step you take creates tiny electrical signals inside your bones. You’ll never charge your phone with them, but they may help tell your skeleton where it needs to grow stronger.

What's going on with the plague? Is a new pandemic starting in Russia? Today we're breaking down what the plague even is, whether it's a lab leak or potential bioweapon story, and how worried you should actually be.

Your garden could be doing more for the planet than you realise. By giving nature more space to do its own thing, we can help boost biodiversity, create healthier ecosystems and improve our own wellbeing too.

Only one third of plants in US gardens are native. To help change that, Nurture Nature co-founder Esther Bonney explains how restoring native biodiversity supports local wildlife and strengthens ecosystems.

Eight endangered orangutans have been released into a protected forest in Indonesia's Borneo after wildfires destroyed their original habitat. Rescuers cheered them on as they made a return to the wild after receiving medical care.

A plague scare in Siberia has become a Rorschach test for public health fears in a post-Covid world.

Russian officials are investigating the death of a worker at a plague research laboratory. They say she died of pneumonia. But speculation online has suggested she may have died from pneumonic plague. Russian authorities deny this and say there is no risk of an outbreak.

So why has the story sparked so much alarm? And how has the legacy of the Covid pandemic played into people's fears of another global health crisis?

Kenya has confirmed its first imported case of Ebola after a Kenyan citizen who had been living in the Democratic Republic of Congo died while receiving treatment in Nairobi. The patient had travelled by road from the DRC through Uganda before flying to Kenya, raising concerns about how he passed through health screening systems despite the ongoing Ebola outbreak in the region. Eight family members and 21 healthcare workers who had contact with him were initially placed under quarantine, while authorities expanded contact tracing to passengers and crew on the flight. Kenyan President William Ruto has ordered an enhanced government response, with surveillance, testing and isolation measures being strengthened across the country. Isolation facilities are being prepared at hospitals and other locations to handle suspected cases, including people arriving across Kenya’s borders. Health officials say the public should remain calm and insist the country has the capacity to respond to any additional cases. The case is linked to the Ebola outbreak in the DRC, which has recorded more than 8,000 confirmed cases and more than 4,000 deaths, making it the country’s worst Ebola outbreak.

Does using more filler words mean you're dumb? Or actually...smarter? Today we're diving into some of the most controversial words.

Seagrass stores massive amounts of CO₂ and makes the sea a good home for countless species. Yet 60% of meadows in the Baltic Sea have disappeared. We look at how researchers are bringing back this unique habitat.

Dozens of people have been quarantined over a suspected case of the plague in Russia’s Siberia, after a laboratory worker at a research institute fell ill and died in undisclosed circumstances. Al Jazeera’s Dmitry Medvedenko looks at what we know so far.

Huge crowds have flocked to a canal in South Korea to watch a stranded shark.

Bukangi was first spotted in the waterway last month in the south-eastern city of Busan.

Now a third attempt has been made to rescue the female using nets to guide her back to the open sea.

The BBC's Seoul correspondent Jake Kwon has been in Busan to follow the latest attempt to rescue Bukangi.

It's emerged that some of Europe's biggest fish farmers are now using poultry by-products to feed their salmon.

Two seafood suppliers have reportedly already started - and two more are preparing to, prompted by fishmeal prices almost doubling in the past two years. And chicken-fed salmon could soon be part of your weekly shop too.

From coastlines to open waters, discover the remarkable stories of animals that shape our natural world.

A hungry cub pushes its mother lioness into a dangerous face-off with a warthog, while a fish that hunts pigeons takes advantage of their lack of fear...

As a swarm of locusts devours everything in its path and a colony of army ants rampages through the forest, discover nature’s tiny terrors in all their extraordinary and destructive power.

The number of people developing dementia worldwide each year could more than double by 2050, according to a new study. Researchers project that annual cases will rise from nearly 11 million in 2023 to almost 25 million by 2050, largely driven by ageing populations. Alzheimer's disease accounts for up to 70 percent of dementia cases, while scientists estimate that a significant proportion could be prevented or delayed by addressing risk factors such as high blood pressure, diabetes, smoking and hearing loss. Women face a higher risk of developing dementia, and low- and middle-income countries are expected to experience particularly sharp increases. Dr Ivan Koychev, a neuroscientist and Clinical Associate Professor in Neuropsychiatry at Imperial College London, tells Al Jazeera that managing cardiovascular health, staying physically and socially active, and maintaining intellectual engagement can help reduce the risk. He also explains the possible role of hormonal changes in women's increased risk, identifies early warning signs such as memory loss and changes in thinking, and stresses the importance of seeking medical assessment when symptoms appear.

Why do living things almost always use just one version of certain molecules, while the mirror-image version is largely absent from nature? It's a question that puzzled scientists for more than a century. This year's Chemistry Nobel goes to two researchers whose work helped explain that mystery and opened new possibilities for developing safer and more effective medicines.

Researchers are increasingly using AI to aid in scientific research and medical care, potentially improving a healthcare system often viewed as flawed and inaccessible.

The 2026 Nobel Prize for medicine has been awarded to American Karl Deisseroth, and Germans Peter Hegemann and Georg Nagel. They were recognized for their discoveries on light and optogenetics. The Nobel Assembly at Sweden's Karolinska Institute said their work was being used in labs around the world "to reveal the brain's mysteries." DW science reporter Zulfikar Abbany explains the groundbreaking nature of the winners' research.

The death of a worker at a Russian plague research centre in Siberia has raised concerns that the deadly disease could spread.

The World Health Organisation and the United States have both asked Russia for more information on the circumstances surrounding the incident. US Secretary of State Marco Rubio has urged Russia to release more information. "I think it's incumbent upon Russia to obviously share more information with the world," Rubio told reporters. "We're watching it very closely, hour by hour."