The researchers found that if one otter cracked the puzzle, its closest friends quickly solved it, too. The findings provide evidence of “social learning”—animals can learn from each other.(为了获得食物,水獭必须解决如何打开容器的谜题。水獭在几个月的时间间隔内有两次机会尝试解决这个谜题。研究...
The manta ray is a large, diamond-shaped species with long tails that can be found in tropical waters around the world. This includes the Gulf of Mexico, which is home to both the giant manta ray (Mobula birostris) and reef manta ray (Mobula alfredi). As their name suggests, the g...
Female lionfish can spawn (产卵) every few days, producing as many as 2 million eggs per year. Other big fish would have competed with lionfish for food. But overfishing has removed many of these large fish. As a result, the fish have eaten so much that they have grown to be more tha...
Overfishing and harmful fishing practices lead to detrimental impacts on the fragile marine environment, including the disturbance of habitats and biodiversity. According to FAO, almost 90 % of the oceans are considered fully exploited or overfishedFootnote52. A number of fish stocks—for example cod...