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Peacock Inherited Show-off Trait From Dinosaur Ancestors, New Study Suggests

A peacock takes a sunbath on a cold Wednesday, Feb. 21, 2018 at the zoo in Dortmund, Germany. (AP Photo/Martin Meissner)
A peacock takes a sunbath on a cold Wednesday, Feb. 21, 2018 at the zoo in Dortmund, Germany. (AP Photo/Martin Meissner)
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Peacock Inherited Show-off Trait From Dinosaur Ancestors, New Study Suggests

A peacock takes a sunbath on a cold Wednesday, Feb. 21, 2018 at the zoo in Dortmund, Germany. (AP Photo/Martin Meissner)
A peacock takes a sunbath on a cold Wednesday, Feb. 21, 2018 at the zoo in Dortmund, Germany. (AP Photo/Martin Meissner)

A new dinosaur fossil revealed that the show-off tendency in some birds, mostly peacocks, dates back to millions of years.

The new species, Ubirajara jubatus (the Latin meaning of the Lord of the Spear), was chicken-sized with a mane of long fur down its back and stiff ribbons projecting out and back from its shoulders, features never before seen in the fossil record. It is thought its flamboyant features were used to dazzle mates or intimidate foes.

An international team of scientists from the University of Portsmouth, and the State Museum of Natural History, Karlsruhe, Germany discovered the new species while examining fossils in Karlsruhe´s collection. The study was published on December 14 in the journal Cretaceous Research.

"What is especially unusual about the beast is the presence of two very long, probably stiff ribbons on either side of its shoulders that were probably used for display, for mate attraction, inter-male rivalry or to frighten off foes," said the study's lead author David Martill in a report published on the website of the Portsmouth University.

The ribbons are not scales or fur, nor are they feathers in the modern sense. They appear to be structures unique to this animal, which makes one ask: Why adorn yourself in a way that makes you more obvious to both your prey and to potential predators? "The truth is that for many animals, evolutionary success is about more than just surviving, you also have to look good if you want to pass your genes on to the next generation," Martill explained.

Modern birds are famed for their elaborate plumage and displays that are used to attract mates -- the peacock's tail and male birds-of-paradise are textbook examples of this. Ubirajara shows us that this tendency to show off is not a uniquely avian characteristic, but something that birds inherited from their dinosaur ancestors, as indicated this unique fossil.

Ubirajara jubatus lived about 110 million years ago, during the Aptian stage of the Cretaceous period, and is closely related to the European Jurassic dinosaur. It is the first non-avian dinosaur to be described from Brazil's Crato Formation, a shallow inland sea laid down about 110 million years ago.

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Varieties

Swollen Rivers Flood Towns in US South after Dayslong Deluge of Rain

The rising waters of Cedar Creek and the Kentucky River overflow their banks, Sunday, April 6, 2025, in Monterey, Ky. (AP Photo/Carolyn Kaster)
The rising waters of Cedar Creek and the Kentucky River overflow their banks, Sunday, April 6, 2025, in Monterey, Ky. (AP Photo/Carolyn Kaster)
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Swollen Rivers Flood Towns in US South after Dayslong Deluge of Rain

The rising waters of Cedar Creek and the Kentucky River overflow their banks, Sunday, April 6, 2025, in Monterey, Ky. (AP Photo/Carolyn Kaster)
The rising waters of Cedar Creek and the Kentucky River overflow their banks, Sunday, April 6, 2025, in Monterey, Ky. (AP Photo/Carolyn Kaster)

Days of unrelenting heavy rain and storms that killed at least 18 people worsened flooding as some rivers rose to near-record levels and inundated towns across an already saturated US South and parts of the Midwest.

Cities ordered evacuations and rescue crews in inflatable boats checked on residents in Kentucky and Tennessee, while utilities shut off power and gas in a region stretching from Texas to Ohio.

“I think everybody was shocked at how quick (the river) actually did come up,” said salon owner Jessica Tuggle, who was watching Monday as murky brown water approached her business in Frankfort, Kentucky, the state capital along the swollen Kentucky River, The AP news reported.

She said that as each new wave of rain arrived over the weekend, anxious residents hoped for a reprieve so they could just figure out how bad things would get and how to prepare. She and friends packed up everything she could haul out of her salon, including styling chairs, hair products and electronics, and they took it all to a nearby tap house up the hill.

“Everybody was just ‘stop raining, stop raining’ so we could get an idea of what the worst situation would be,” she said.

Officials diverted traffic and turned off utilities to businesses in the city as the river was expected to approach a record crest on Monday.

For many, there was a sense of dread that the worst was still to come.

“As long as I’ve been alive — and I’m 52 — this is the worst I’ve ever seen it,” said Wendy Quire, the general manager at the Brown Barrel restaurant downtown.

“The rain just won’t stop,” Quire said Sunday. “It’s been nonstop for days and days.”

Storms leaving devastating impact The 18 reported deaths since the storms began on Wednesday included 10 in Tennessee. A 9-year-old boy in Kentucky was caught up in floodwaters while walking to catch his school bus. A 5-year-old boy in Arkansas died after a tree fell on his family’s home, police said. A 16-year-old volunteer Missouri firefighter died in a crash while seeking to rescue people caught in the storm.

The National Weather Service warned Sunday that dozens of locations in multiple states were expected to reach a “major flood stage,” with extensive flooding of structures, roads, bridges and other critical infrastructure possible.

In north-central Kentucky, emergency officials ordered a mandatory evacuation for Falmouth and Butler, towns near the bend of the rising Licking River. Thirty years ago, the river reached a record 50 feet (15 meters), resulting in five deaths and 1,000 homes destroyed.

The storms come after the Trump administration cut jobs at NWS forecast offices, leaving half of them with vacancy rates of about 20%, or double the level of a decade ago.

Why so much nasty weather? Forecasters attributed the violent weather to warm temperatures, an unstable atmosphere, strong winds and abundant moisture streaming from the Gulf.

The NWS said 5.06 inches (nearly 13 centimeters) of rain fell Saturday in Jonesboro, Arkansas — making it the wettest day ever recorded in April in the city. Memphis, Tennessee, received 14 inches (35 centimeters) of rain from Wednesday to Sunday, the NWS said.

Rives, a northwestern Tennessee town of about 200 people, was almost entirely underwater after the Obion River overflowed.

Domanic Scott went to check on his father in Rives after not hearing from him in a house where water reached the doorstep.

“It’s the first house we’ve ever paid off. The insurance companies around here won’t give flood insurance to anyone who lives in Rives because we’re too close to the river and the levees. So if we lose it, we’re kind of screwed without a house,” Scott said.

In Dyersburg, Tennessee, dozens of people arrived over the weekend at a storm shelter near a public school clutching blankets, pillows and other necessities. Just days earlier the city was hit by a tornado that caused millions of dollars in damage.

For some, grabbing the essentials also meant taking a closer look at the liquor cabinet.

In Frankfort, with water rising up to his window sills, resident Bill Jones fled his home in a boat, which he loaded with several boxes of bottles of bourbon.