Recent findings from the Institute of Marine Science at the University of California, Santa Cruz indicate that the capability to perceive time is not exclusive to humans.
Ronan is recognized as the most consistent and accurate mammalian beatkeeper in experimental conditions. Image credit: Joel Saltore.
While certain mammals and birds have demonstrated the ability to synchronize their movements to rhythmic cues during laboratory experiments, most vertebrate species show minimal evidence of beat synchronization.
Ronan, a California sea lion (Zalophus californianus), was trained at the age of 3 to move his head in time with a metronome and has maintained this skill into adulthood.
“Despite extensive research involving a wide array of species, no comprehensive scientific agreement exists regarding whether complex stimuli perception, such as music and beat maintenance, is underpinned by unique biological mechanisms,” researchers noted.
“The most comprehensive comparative data set on sensorimotor synchronization actually originates from invertebrates, with certain insects like fireflies and crickets displaying rate-sensitive synchronization with signals pertinent to their species.”
“The precision and tempo range of these insects can rival human performance in synchronized rhythms.”
“However, unlike humans, who are proficient at synchronizing with a range of rhythmic stimuli, including music, invertebrate synchronization tends to be limited to a narrow scope of specific cues.”
“Studies of beat maintenance in non-human vertebrates primarily derive from the Psittacinae subfamily (parrots), yet these often exhibit lower consistency and accuracy compared to humans, making robust beat keeping challenging for other primates,” they added.
“An exceptional case is Ronan, who has been trained to perform continuous head bobbing in sync with metronomic sounds, illustrating the capability to adapt to new tempos and stimuli.”
https://www.youtube.com/watch?v=29arkafwjia
In their latest study, Dr. Cook and colleagues examined Ronan’s consistency in timing to snare drum beats at 112, 120, and 128 beats per minute (bpm).
The same beats were then presented to 10 undergraduate students aged 18 to 23.
The team assessed the participants’ timing accuracy using video tracking software, finding that Ronan’s overall timekeeping was less reliable and varied compared to human counterparts.
Ronan’s accuracy improved with tempo; at 128 bpm, his average with a tempo was 129 bpm (±2.94), while human subjects averaged 116.2 bpm (±7.34).
After the experiment, Ronan received toys filled with fish and ice as rewards.
This study examined only one trained sea lion and ten humans, necessitating further research to validate these findings through larger studies.
“The sensorimotor synchronization in sea lions appeared accurate, consistent, and sometimes outperformed that of a typical adult,” the researchers concluded.
“These results challenge the notion of unique neurobiological adaptations for maintaining human beats.”
The study’s findings were published in the journal Scientific Reports on May 1, 2025.
____
PF Cook et al. 2025. Sensory motor synchronization in sea lions rivals that of humans. Sci Rep 15, 12125; doi:10.1038/s41598-025-95279-1
Source: www.sci.news
