These tiny fish combine electric pulses to probe the environment
Mar 6, 2024
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Bumblebees show collective learning abilities similar to humans. Tiny elephantnose fish combine electric pulses for enhanced sensing. Researchers discuss the potential of organoids grown from amniotic fluid cells. Debate ensues over the weight estimation of ancient whale Perisettis Colossus.
Bumblebees exhibit social learning by sharing complex behaviors, suggesting broader animal cognitive abilities.
Elephant Nosefish collaborate in combining electric pulses for collective sensory advantage, showcasing a unique form of active communication in animals.
Deep dives
Research with Bumblebees: Addressing Cultural Learning
Researchers investigated bumblebees' ability to socially learn complex behaviors, challenging the notion that only humans possess this trait. By training bumblebees to solve a puzzle box with unrewarded steps, they found bees could learn from each other, demonstrating cultural transmission similar to higher-order species. This suggests abilities once considered uniquely human may have broader evolutionary roots.
Electrolocation in Elephant Nosefish: Collective Sensory Exploration
Elephant Nosefish utilize electrical pulses to sense their environment in a unique way, sharing information among group members for collective sensory advantage. Through experiments showing these fish extending their sensing range and exploiting other fish's signals for added perspective, researchers highlight a new form of active collective sensing among electric animals like the Elephant Nosefish.
Researchers have developed a novel method using cells from amniotic fluid to grow organoids representing fetal tissue, demonstrating potential for modeling congenital disorders. Utilizing stem cells from fluid surrounding fetuses, these rapidly growing organoids may offer insights into development, disease progression, and treatment screening, though challenges remain in scaling this technique.
Ancient Whale Mass Debate: Reassessing Prehistoric Weight Estimates
Debates have emerged regarding the mass of an ancient whale, challenging claims that it was the heaviest animal to ever exist. New analyses suggest the whale was significantly lighter than previously estimated, raising questions about the methodology used in determining ancient animal weights and highlighting the complexities of extrapolating mass from sparse fossil evidence.
00:48 Bumblebees can learn new tricks from each other
One behaviour thought unique to humans is the ability to learn something from your predecessors that you couldn’t figure out on your own. However, researchers believe they have shown bumblebees are also capable of this ‘standing on the shoulders of giants’ approach to learning. Bees that were taught how to complete a puzzle too difficult to solve on their own, were able to share this knowledge with other bees, raising the possibility that this thought-to-be human trait could be widespread amongst animals.
19:28 The fish that collectively, electrically sense
Many ocean-dwelling animals sense their environment using electric pulses, which can help them hunt and avoid predators. Now research shows that the tiny elephantnose fish can increase the range of this sense by combining its pulses with those of other elephantnose fish. This allows them to discriminate and determine the location of different objects at a much greater distance than a single fish is able to. This is the first time a collective electric sense has been seen in animals, which could provide an ‘early-warning system', allowing a group to avoid predators from a greater distance.