College of Natural & Agricultural Sciences

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CNAS Science Lecture Series 2025

What is an organism, anyway?

UCR hosts inaugural Southern California Conference on Ecological Change

The UC Riverside departments of Evolution, Ecology & Organismal Biology, Botany and Plant Sciences, and Environmental Sciences hosted the inaugural Southern California Conference on Ecological Change on February 14.

Megalodon Might Have Been Longer and Skinnier Than Previously Thought, Growing Up to 80 Feet

SMITHSONIAN MAGAZINE - Megalodons might have been longer and thinner than previously thought, according to a new study. The enormous, extinct sharks, scientists now say, grew to between 54 and 80 feet long and weighed about 94 tons. Earlier estimates had them at a maximum of 50 feet.
By y Sara Hashemi | Smithsonian Magazine |

Giant Megalodon super shark was actually more like a whale

METRO UK - Experts have said the prehistoric predator the Megaladon was a ‘sleeker’ creature than the one portrayed in the 2018 movie, where a beast akin to a great white shark wrought havoc in the ocean.
By By Ben Lynch | METRO UK |

Megalodon Wasn’t a Fat Great White—It Was a Sleek Lean Killing Machine

ZME SCIENCE - If Meg 3 ever happens, the filmmakers might need to ditch the oversized great white shark trope. A new study published in Palaeontologia Electronica found that the famous megalodon wasn’t just an outsized version of today’s great white shark. Researchers now say this ancient super-predator was a longer, more streamlined animal built...
By By Jordan Strickler | ZME Science |

Megalodon: Scientists Reveal a Crucial Surprise About The Mega-Shark

SCIENCE ALERT - It remains a sad fact of this world that we will never know for certain what the long-lost megalodon truly looked like – but a new study gives us what may be the most accurate reconstruction yet.
By By Michelle Starr | ScienceAlert |

Megalodon may have been ‘even longer’ than we thought

POPULAR SCIENCE - If you picture a megalodon, chances are you envision what amounts to a gigantic great white shark. The image is understandable, given almost every depiction of the ancient apex predators across research and pop culture. But last year, an international team put forth a new anatomical design based on their analysis of...
By By Andrew Paul | Popular Science |

Big CONGRATULATIONS to Kate Ostevik

for being awarded an NSF CAREER Award!!

Faculty promotions and awards celebrated

UC Riverside honored faculty members for their achievements at the 2025 Faculty Awards Dinner on Thursday, Feb. 6.
By Imran Ghori |

Wildlife Highlights

Watch the fall 2024 highlights from Spasojevic Ecology Lab's camera traps at the San Jacinto Forest Dynamics plot near Idyllwild, California, and the UCR James Reserve.
By Spasojevic Lab |

THE EEOB Graduate Program is Proud to Announce the PH.D. Dissertation Defense of Tesa Madsen-Hepp

Title: "Unraveling the processes of plant community assembly in an era of global change: insights from a dryland ecosystem"

Junior faculty honored for being outstanding teachers

Congratulations Lucy Delaney! To be recognized by UCR’s exclusive Academy of Distinguished Teaching as a junior faculty member, one must be more than a cutting-edge researcher. One must also be an outstanding teacher. Four individuals have been recognized this year as being both.
By Jules Bernstein |

Ria Ghosh, Presents Research at Ecological Society of America Annual Meeting 2024

The Ecological Society of America (ESA) — the nation’s largest organization of professional ecologists— held their annual meeting on August 4-9, 2024 where thousands of ecological scientists, educators, students, and practitioners gathered from around the world to share new research findings and discuss solutions to today’s ecological and environmental challenges.
By CNAS |

This Red Ingredient May Be Safe To Add To Hummingbird Nectar, But Should You?

Have you ever noticed that many hummingbird feeders are bright red? Have you ever wondered why?
By Amanda Finn |

The EEOB Graduate Program is proud to annouce the Ph.D. Dissertation Defense of Sam Kubica

Title: "The evolution of mammalian vertebral number”

Rahul Almeida wins 2024-25 Strauss Scholarship

Rahul Almeida, a biology undergrad expected to graduate from UC Riverside in 2025, has been awarded $15,000 from the Donald A. Strauss Foundation to fund an educational intervention program he organized called, “Food for Thought.”
By Malinn Loeung |

The EEOB Graduate Program is proud to announce the PhD Dissertation Defense of Ayala Berger

Title: "A ‘tail’ of two signals: acoustic courtship displays in Anna’s and Costa’s hummingbirds"

The EEOB Graduate Program is proud to announce the PhD Dissertation Defense of Clara A. Woodie

Title: "Predators that eat their competitors: Mechanisms of food web stability"

The EEOB Graduate Program is proud to announce the PhD Dissertation Defense of Sarah Gardner

Title: "Exploring the prenatal microbiome in Mus"

Fearsome Sharks of Today Evolved When Ancient Oceans Got Hot

More than 100 million years ago, scientists say, warming seas and reduced oxygen may have sent some sharks higher into the water column, where they evolved to be fierce and hungry.
By NYT Jeanne Timmons |
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