When hikers in California came across a young bear cub crying on a trail last month, they knew they had to help. It was a rough start for the tiny bear, but now he's safe, healthy, and growing fast. In a year or so, he may be ready to return to the wild.
Last Thursday, the United Kingdom signed an agreement which will return control of the Chagos Islands to Mauritius. In exchange, the UK will be able to continue using the largest island as a military base for the next 99 years.
Last year, the world lost more forests than ever before. The biggest cause of this loss was fires. Land clearing for farming and other human activities was also a major cause. The results are very worrying for the planet, which relies on forests to help fight climate change.
Scientists in Hawaii have discovered a new species of moth, and its caterpillar has an unusual lifestyle. It lives in spiders' webs, eating insects it finds there. To protect itself from the spiders, the caterpillar covers itself with body parts from dead insects. Scientists call it the "bone collector" caterpillar.
Scientists have created the first gene-editing medicine made for a single patient. The patient - a young baby who was sick because of a problem with his DNA - is now greatly improved, and is expected to go home soon.
Actions by US President Donald Trump are raising serious questions about how he is using his position as president to make himself and his family richer. Some of Mr. Trump's actions would have been enough to force earlier presidents from office.
Scientists in the Netherlands have created a soft-bodied robot that's powered by air. The robot doesn't have a computer or a "brain", but even so, it's able to walk and swim on its own.
Last Thursday, the Roman Catholic Church chose a new pope: Chicago-born Cardinal Robert Prevost. The church announced that the new pope was taking the name Pope Leo XIV. This is the first time an American has been chosen as pope.
In March, Israel broke its ceasefire with Hamas and restarted its war in Gaza. Israel's attacks and efforts to cut off food and other supplies have left hundreds of thousands of Palestinian people in Gaza struggling to survive.
Last month, the world's shortest dog and the world's tallest dog had a chance to meet. Reggie the Great Dane and Pearl the Chihuahua got along great. Their meeting was a fun reminder that friendship doesn't depend on size.
On Earth Day - April 22 - the XPrize announced the winners of its Carbon Removal contest. A company called Mati Carbon won the $50 million prize. Their method is simple, but it could remove huge amounts of carbon dioxide and also help farmers grow more food.