SCIENCE
Scientists have discovered 161 million-year-old fossils of a tiny bird-like dinosaur from China that sported flashy rainbow feathers and a bony crest on its snout to attract mates. Researchers conducted the first in-depth study of the dinosaur named Caihong juji. "Iridescent colouration is well known to be linked to sexual selection and signalling, and we report its earliest evidence in dinosaurs," said Julia Clarke, a professor at the University of Texas at Austin.
Scientists have discovered 161 million-year-old fossils of a tiny bird-like dinosaur from China that sported flashy rainbow feathers and a bony crest on its snout to attract mates. Researchers conducted the first in-depth study of the dinosaur named Caihong juji. "Iridescent colouration is well known to be linked to sexual selection and signalling, and we report its earliest evidence in dinosaurs," said Julia Clarke, a professor at the University of Texas at Austin.
"The dinosaur may have a cute nickname in English, Rainbow, but it has serious scientific implications," said Clarke. Aside from making Jurassic ecosystems of 161 million years ago more colourful, the dinosaur is interesting because it has features that are both ancient and modern, said Xing Xu, a professor at the Chinese Academy of Sciences.
The bony crest is a feature usually seen in dinosaurs from earlier eras, while its neck feathers show evidence of microscopic wide, flat, pigment-containing packages, or melanosomes, that may represent the first known occurrence of iridescence similar to that found in a variety of hummingbird species living today. "There are crests associated with sexual selection previously known only in earlier dinosaurs, and yet there is also a bird mechanism of signalling or display appearing for the first time," said Clarke.
Caihong is also the earliest known dinosaur with asymmetrical feathers, the feather type found on the wingtips of modern birds that helps control flight. However, unlike birds today, Caihong's asymmetrical feathers were on its tail, not its wings - a finding that suggests that early birds may have had a different steering or flight style. "The tail feathers are asymmetrical but wing feathers are not, a bizarre feature previously unknown among dinosaurs including birds," said Xu.
"This suggests that controlling flight might have first evolved with tail feathers during some kind of aerial locomotion," he said. The slab of rock from China's Hebei Province where the dinosaur was discovered by a farmer in 2014 contained a nearly complete skeleton surrounded by impressions made by feathers. The impressions preserved the shape of the melanosomes.
Researchers compared the melanosome impressions to melanosomes found in living birds and found that they most closely resembled those in the iridescent, rainbow feathers of hummingbirds. Caihong is part of a group of small, bird-like dinosaurs that lived in China during the Jurassic, but it stands out even among its closest relatives, Xu said.
While the other dinosaurs have bird-like, triangular skulls and long forearm bones in comparison to birds today, Caihong had a long and narrow skull, and unlike many of these other dinosaurs, its short forelimbs show proportions more akin to modern birds.
Harshvardhan Rane, Mawra Hocane react to Amitabh Bachchan's shout out to Sanam Teri Kasam re-release
Chhaava box office collection day 2: Vicky Kaushal, Akshaye Khanna film mints Rs 67 crore
15 injured in stampede at New Delhi Railway Station, probe on
Amitabh Bachchan was 'mind-blown' in a Bangkok strip club, reveals...: 'He was wearing...'
Watch: Gautam Adani and his wife offered 'chadar' at Ajmer Sharif Dargah
European man shares 10 lessons that shattered his western mindset after moving to India
'India needs strong production base, not empty words': LoP Rahul Gandhi's veiled dig at centre
Ranveer Allahbadia says he’s getting death threats from..., promises he won’t...
Bad news for Rohit Sharma ahead of Champions Trophy 2025, BCCI to take huge step on India captain
Mukesh Ambani's Reliance Industries buys new company for Rs 6.73 crore, it is called...
Who was Lavoo Mamledar, former MLA who died after altercation with...in...
World's largest gold deposit worth over Rs 7 lakh crore found in China, hidden beneath....
Video Viral: Monalisa Bhosle, Mahakumbh sensation, takes first-ever flight to Kozhikode
Who Owns Burj Khalifa? Know the SURPRISING owner of the world's tallest building
Legendary Bengali singer-songwriter Pratul Mukhopadhyay passes away at 82
Whale swallows, then spits out kayaker as moment is captured on camera; WATCH viral video
'I do not regret being part of it': Raghu Ram opens up on India's Got Latent controversy
Meet influencer Ashley Clair who claims Tesla CEO Elon Musk is the father of her child
After Virat Kohli, Yuvraj Singh cuts ties with Ranveer Allahabadia – Here's what happened!
NASA’s curiosity Rover captures stunning twilight clouds on Mars, leaves internet in awe
Who is Ashley St. Clair? Author claiming she secretly gave birth to Elon Musk's child
Google secures Mumbai's BKC offices, renews lease with staggering monthly rent of over Rs.....
Meet man, who sold previous company for Rs 1 lakh crore, he is...
American whiskey Bourbon set to take over Indian market, here's how
Ten devotees from Chhattisgarh killed as car collides with bus enroute to Maha Kumbh
What happens after UPSC? Civil servants share about life at LBSNAA
Mukesh Ambani, sons Akash and Anant take holy dip at Mahakumbh, woman shares video; watch here
'What Akshay Kumar does is..': Ahmed Khan reveals superstar uses teleprompter for…, defends his…
Maha Kumbh fame IIT Baba aka Abhay Singh's 10th, 12th marksheet goes viral
Ameesha Patel shares 'fraudulent promise' video of Gadar 2 because Anil Sharma...: 'How will you...'
After Cristiano Ronaldo, Lionel Messi’s teammate Federico Redondo takes dig at PSG, claims...
Who is Abhinav Chandrachud? Lawyer representing YouTuber Ranveer Allahbadia, he is son of famous...
India's Got Latent controversy: YouTuber Apoorva Makhija kicked out from IIFA? Here's what we know
Former WWE wrestler gives BIG warning to Ranveer Allahbadia, says, 'people like him have...'
Ukraine's Zelenskyy makes BIG claim, says Donald Trump can push Putin to...
Anti-Valentine’s week: From Breakup Day to Slap Day, 7 days explained
Saturday bank holiday: Are banks open or closed on February 15? Check here
Meet Fearless Nadiya, first female Bollywood action star, she was from...
Prateik Babbar shares passionate kiss with Priya Banerjee in dreamy wedding photos
Vicky Kaushal, Rashmika Mandanna, Akshaye Khanna’s Chhaava is a historic epic that roars to glory
'India, US stand firmly together in fight against terrorism': PM Modi
Ranveer Allahbadia hires Ex-Chief Justice of India's son as his lawyer, approaches Supreme Court
CanCentra Review 2025: Scam Or Legit Trading Platform? - Canada Facts!
PAFI Kabupaten Gunungkidul Launches Pharmacist Training Program to Elevate Healthcare Standards
Oswal Energies introduces Advanced Clean Energy Solutions at India Energy Week 2025