All articles tagged with #foraging
Two-and-a-half years of GPS tracking across Yellowstone show ravens rarely follow wolves long distances; instead, they use a strong memory to repeatedly visit areas where wolf kills are likely, effectively building a mental map that guides scavenging across the landscape.
Researchers tracked 69 ravens and 20 wolves in Yellowstone for over 2.5 years and found that ravens rarely shadow wolves; instead they rely on long-term memory of areas where wolf kills are common, sometimes flying up to 155 km to likely carcass sites, indicating sophisticated spatial memory and flexible foraging rather than simple pursuit.
A 1.6-million-year-old fossil assemblage from Koobi Fora, Kenya shows early Homo used a mixed strategy to access meat—both scavenging and hunting—transporting the meatiest parts for processing and later breaking bones for marrow, suggesting meat consumption evolved gradually in response to ecological conditions.
Foraging for wild food, especially mushrooms, can be rewarding but risky due to the potential for confusing edible and toxic varieties. Experts emphasize the importance of proper identification, knowledge, and legal considerations to avoid health hazards and environmental impact. Beginners are advised to start with simple, easily recognizable plants and seek guidance from experienced foragers to safely enjoy the benefits of wild foods.
A recent study suggests that scavenging, particularly consuming carrion, played a crucial role in human evolution by providing a reliable and energy-efficient food source, challenging traditional views that emphasized hunting as the primary means of obtaining meat.
A French village's ALS cases linked to consumption of false morel mushrooms containing neurotoxins, highlighting the dangers of wild mushroom foraging and potential environmental contributors to neurodegenerative diseases.
A Golden Retriever named Huxley dramatically changed his eating habits after his vegan uncle visited, developing a new habit of foraging for fruits and berries from the garden, which surprised and amused his owner and netizens alike.
A new study challenges the fruit-diet hypothesis for brain evolution in primates, finding that larger-brained primates like spider monkeys and capuchins do not have more efficient foraging routes compared to smaller-brained animals. This suggests that factors other than foraging efficiency, such as memory, tool use, or social complexity, may have driven the evolution of large brains in some species.
A new study challenges the leading hypothesis that primates evolved large brains to find food more efficiently. By tracking the foraging routes of large-brained primates and smaller-brained non-primates in Panama, researchers found no significant difference in foraging efficiency, suggesting that other factors like memory, tool use, or social complexities may have driven brain size evolution.
New research suggests that individuals with more pronounced symptoms of ADHD tend to achieve higher reward rates in an online foraging task, spending less time at a single location and more frequently switching to other locations. The study indicates that ADHD symptoms may encourage a propensity to leave current resource areas in search of new ones, leading to a greater preference for exploring new areas. This behavior aligns more closely with the predictions of optimal foraging theory, suggesting that the prevalence and persistence of ADHD in human populations may serve an adaptive function in some environments.
The CDC has issued a warning after morel mushrooms were linked to at least two deaths and dozens of sicknesses, cautioning foragers to eat them safely. The mushrooms were connected to a deadly outbreak in Montana last year, with at least 51 people falling ill after consuming them. Experts emphasize the importance of fully cooking morel mushrooms, as eating them raw can lead to sickness. Foragers are advised to take precautions and cook the mushrooms thoroughly to safely enjoy the hunting season, which is currently underway.
A new study suggests that traits common to people with ADHD, such as distractibility and impulsivity, may have been advantageous strengths passed down from our ancestors, particularly in the context of foraging and survival strategies. The study found that individuals with higher ADHD-like symptoms tended to spend less time foraging in one area and showed higher tendencies to move on to new areas, ultimately scoring higher in an online foraging game. While the study comes with limitations and further research is needed, it provides insight into the potential evolutionary benefits of ADHD traits.
A new study suggests that traits associated with ADHD, such as impulsiveness and hyperactivity, may have provided an evolutionary advantage in foraging for food. Researchers found that individuals with ADHD-like traits were more likely to explore different food sources, ultimately collecting more berries in a simulated foraging game. This supports the "evolutionary mismatch" theory, indicating that these traits were advantageous in the past and may persist due to their benefits in certain environments.
A new study suggests that individuals with ADHD-like traits may have an evolutionary advantage in foraging, as they tend to have better foraging strategies than those with neurotypical traits. The findings propose that ADHD traits may have evolved as an adaptive survival strategy, favoring exploration of new spots for resources. While these traits may not always prove beneficial in modern contexts, the study highlights the potential advantages of ADHD-like traits in certain environments and the need for further research in this area.
A study suggests that ADHD may have provided evolutionary advantages for our ancestors by helping them know when to quit foraging in declining patches, potentially explaining its prevalence today. University of Pennsylvania researchers had volunteers play a foraging game, finding that those with ADHD symptoms were more likely to abandon declining patches, ultimately obtaining 16% more berries. This diversity in mental approaches within local populations may have contributed to the survival and success of tribes in changing environments.