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Tyrannosaurus rex grew up slowly: New study reveals the “king of dinosaurs” kept growing until age 40

A new study reveals that Tyrannosaurus rex took 40 years to reach its full-grown size, growing at a slower and steadier pace than previously thought. The analysis provides a clearer picture of the dinosaur's life history, suggesting that its growth phase may have allowed it to fill various ecological roles in its environment.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateJan 14, 2026

New study reveals bias in AI text detection tools impacts academic publishing fairness

A new study published in PeerJ Computer Science reveals significant accuracy-bias trade-offs in AI text detection tools, which could disproportionately affect non-native English speakers and certain academic disciplines. The research highlights the limitations of detection-focused approaches and urges a shift towards ethical use of LLM...

SourcePeerJ·JournalPeerJ Computer Science·TypeData/statistical analysis·DateJun 24, 2025

Humanoid robots join human musicians for synchronized musical performances

Researchers develop a human-robot musical band featuring humanoid robots that perform alongside human musicians, achieving natural synchronization through advanced robotic systems. The project showcases the potential of humanoid robots in creative fields like music, highlighting real-time interaction, adaptability, and artistry.

SourcePeerJ·JournalPeerJ Computer Science·DateJan 27, 2025

Balancing renewable energy expansion and biodiversity conservation: new study highlights overlap of solar energy potential and critical habitats in the Southwest

A new study reveals a significant overlap between high-priority conservation habitats and areas suitable for large-scale solar energy development in the arid Southwest. The research emphasizes the urgent need for strategies that balance renewable energy growth with conservation priorities.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateJan 2, 2025

New venomous reptile species unearthed in Arizona

A new species of small, venomous reptile has been discovered in the Late Triassic Chinle Formation in northeastern Arizona. The species, Microzemiotes sonselaensis, features distinct grooves on its teeth that likely facilitated venom delivery, indicating a reliance on venom in its feeding strategy.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateOct 14, 2024

Sperm whale departure linked to decline in jumbo squid population in Gulf of California: new study unveils long-term impact on ecosystem health

A new study reveals a significant correlation between the decline of jumbo squid and the disappearance of sperm whales from the region. The research suggests that sperm whales play a crucial role in controlling energy flow within marine ecosystems, highlighting their importance as indicators of oceanic health.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateOct 8, 2024

New species of flatworm invading the United States

A new species of flatworm, Amaga pseudobama, has been discovered in the southern United States and is already present in several states. The species resembles Obama nungara, a European invasive species, making it difficult to distinguish from citizen science data.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateSep 24, 2024

Scientists unlock mysteries of orangutan communication

Researchers have revealed the intricate vocal patterns of Bornean orangutans, shedding light on their complex social behaviors and vocal communication. The study identified three distinct pulse types in their long calls, which play a crucial role in their communication across vast distances.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateMay 14, 2024

Black mountain unveils fossil trove

A team of researchers has unveiled over 200 well-preserved fossils from Queensland's Black Mountain, revealing intricate siphuncle morphology in Plectronoceratids. The discovery challenges previous interpretations and advocates for a revised taxonomy, consolidating multiple species under the order Plectronoceratida.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateFeb 29, 2024

Optimization of oil industry wastewater treatment system and proposing empirical correlations for chemical oxygen demand removal using electrocoagulation and predicting the system’s performance by artificial neural network

Researchers developed an advanced wastewater treatment system using electrocoagulation to remove chemical oxygen demand pollutants. The system achieved optimal COD removal under specific conditions, and an artificial neural network model accurately predicted COD removal rates.

SourcePeerJ·JournalPeerJ·DateSep 27, 2023

New study demonstrates the potential of diseased coral parents in restoring stony coral tissue loss disease-affected species

A new study reveals that even colonies affected by Stony Coral Tissue Loss Disease (SCTLD) can contribute to the restoration of susceptible species through assisted sexual reproduction. The study found high fertilization and settlement success rates, with survivorship rates reaching up to 44% after being outplanted on a degraded reef.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateJul 14, 2023

2018–2022 Southern Resident killer whale presence in the Salish Sea: continued shifts in habitat usage

Researchers have observed a dramatic shift in the seasonal usage of Southern Resident killer whales in the Salish Sea, with their fall and winter presence increasing while spring and summer presence declines. This study emphasizes the importance of regularly updating habitat protection measures to reflect changing species usage.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateJul 12, 2023

A new species of early toothed whale

A new species of early odontocete, Olympicetus thalassodon, has been discovered along the North Pacific coastline. The fossil remains show a unique combination of features that set them apart from other groups of toothed whales.

SourcePeerJ·JournalPeerJ·TypeObservational study·DateJun 23, 2023