A Dolphin's Bizarre Meal Trick: Chasing Fish Until They Vomit
Dolphins have long been celebrated for their intelligence and playful hunting tactics. But a new roundup of natural-world research, published by the Chinese science outlet Guokr, describes one feeding strategy that is stranger than most: chasing fish so relentlessly that the prey vomit, then eating the vomit.
The behavior, documented in a recent study, appears to be a deliberate technique rather than an accident. By pursuing fish at high speed, dolphins may force the prey to regurgitate recently swallowed food, giving the predator an easy, energy-rich meal without the usual struggle. The finding is one of several unusual animal stories gathered in the latest installment of Guokr’s “Nature Trumpet” column, which compiles notable research from the past two weeks.
The column is part of a growing genre of Chinese science communication that translates peer-reviewed research into accessible stories for a general audience. Chinese readers have shown strong appetite for animal behavior and natural history content, and platforms like Guokr have built large followings by mixing humor with rigorous sourcing.
Among the other studies highlighted, researchers recorded a humpback whale mother repeatedly diving back to the seafloor to visit her dead newborn calf, a behavior that looks strikingly like mourning. Scientists caution against over-interpreting animal grief, but the repeated returns suggest a strong attachment between mother and offspring.
Moths, meanwhile, may be harmed by wildfires even when they avoid the flames. The research suggests that smoke and other byproducts of burning vegetation can damage the insects, adding a new dimension to how wildfires reshape ecosystems beyond the obvious destruction.
In another study, scientists used a creative method to estimate the body temperature of Tyrannosaurus rex: analyzing the chemistry preserved in fossil teeth. The results indicate that the giant predator’s body temperature was broadly similar to that of modern humans, offering clues about whether dinosaurs were warm-blooded.
Dog owners may also find something familiar in the roundup. When dogs resist temptation, their brain activity resembles patterns seen in humans facing similar tests of self-control. The finding adds to a growing body of evidence that domestication has shaped canine cognition in ways that parallel our own mental processes.
Finally, the column describes an unexpected relationship on the Tibetan Plateau, where small mammals called pikas compete with yaks for food but may actually help the yaks gain weight. The mechanism is not fully understood, but it suggests that competition in nature can produce surprising benefits.
Taken together, the stories show how much remains unknown about animal behavior, from the deep ocean to the high plateau. They also reflect a broader trend in Chinese science media: turning technical papers into vivid narratives that reach readers far beyond the laboratory. For global audiences, the roundup offers a window into which questions Chinese researchers and science communicators find most captivating, and how they frame the natural world for a fast-growing online readership.