Behavioral Science
A new scientific review details how different species use calls, movements and other signals to cooperate for mutual benefit. The work draws on examples from birds, fish and mammals to show the flexibility of these interactions.
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Researchers have discovered that aggressive green wall lizards, dubbed 'Hulk' lizards, are rapidly outcompeting and eliminating yellow and orange color morphs that coexisted for millions of years. The common wall lizard, Podarcis muralis, across the Mediterranean now shows only white-throated individuals in many populations. A study analyzing over 10,000 lizards revealed this shift in evolutionary dynamics.
Researchers have discovered that terminally ill ant pupae release a distinctive scent to alert their colony, prompting workers to disinfect them and prevent infection spread. This altruistic behavior sacrifices the individual but safeguards the superorganism-like colony. The findings highlight parallels between ant societies and multicellular organisms.
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Researchers at the University of Cincinnati have found that monk parakeets approach unfamiliar birds cautiously, gradually building trust to avoid aggression. The study, published in Biology Letters, reveals patterns similar to human social interactions and other animals. This cautious behavior helps the birds form strong, beneficial bonds over time.