wsws.org 17 Mar, 2021 02:30 am

Dinosaur fossil found sitting on eggs in a nest reveals well-developed parental care

The fossil, dating to 70 million years ago, consists of the partially preserved remains of an oviraptorosaur, a feathered, theropod dinosaur lineage tangentially related to those that eventually gave rise to modern birds.

The fossil, dating to 70 million years ago, during the Cretaceous Period, which ended with the mass dinosaur extinction, consists of the partially preserved remains of an oviraptorosaur, a feathered, theropod dinosaur lineage tangentially related to those that eventually gave rise to modern birds.” According to the CMNH press release, the embryos were at a late stage of development, implying that the adult was actually sitting on the nest incubating the eggs, as is done by many modern birds, rather than that the eggs had been recently deposited to then be left to develop on their own (as is done by modern reptiles).” The interpretation that these dinosaur parents actively incubated their eggs is further supported by the result of oxygen isotope analysis, which indicates that the eggs were maintained at a high temperature, similar to that of modern birds, consistent with the idea that a parent was more or less continually sitting on the nest.This resembles the pattern in some modern birds, known as asynchronous hatching, which means that the offspring emerge from their shells over a somewhat extended period of time.

This evidence of advanced parental care among at least one group of dinosaurs, which are closely related to the ancestors of modern birds, raises interesting questions about other aspects of behavior among these long extinct animals.A multinational team recently announced a fossil dinosaur discovery in China that provides new evidence of advanced parental care among at least one group of the earth’s once dominant vertebrate animals.

Catch Oscar-nominated short films at The Neon

Wasatch Advisors established new holdings in StepStone Group Inc. By Investing.com

Antiseptic and Disinfectant Market to register a CAGR growth

'End the lockdown' protest attracts hundreds in St. Catharines

Audiobook platform Storytel starts operation in Israel

Workflow Management System Market By Latest Trend, Share, Size, Application, Growth and Forecast to 2025

COVID-19 vaccination event in Reddick attracts many

Teen girl needs loving, understanding family

Italian-Thai surveyors’ attitude upsets KNU and villagers

Inside Amber Iman's Return to Broadway With a Live, In-Person Audience

Biden ‘Environmental Justice’ Appointees Equate Fossil Fuels With Racism

Biden Plans to Pay Immigrants Not to Come – PJ Media

Brood X is coming, and with it the noise

Mother detained after three children fatally stabbed

East Texas Teenager Passes Away in Auto Accident

Police investigate hate related graffiti at a London park, Saturday

Jatuporn's best days may be behind him

“Politics is changing in Nigeria, INEC must use technology to ensure that poll results is not easily changed at its portal - Obaseki insists

Lockdown eases: How we fit bras at a social distance

Preparations underway for annual conference of Boao Forum for Asia in Hainan - Xinhua

Edmonton Oilers place centre Ryan Nugent-Hopkins on injured list

Dinosaur fossil found sitting on eggs in a nest reveals well-developed parental care

New York’s Civilian Complaint Review Board exposed as accomplice of NYPD

Canada’s New Democrats pledge to keep propping up Trudeau’s big business minority Liberal government

Trial of fascist Kenosha shooter Rittenhouse delayed until November

UK government advocates for murderous “learning to live with the virus”

The Binghamton University COVID-19 crisis and the way forward for students, faculty and staff

<em>The Best American Short Stories 2020</em>: The state of mind of a certain social layer

Five Oklahoma City police officers charged in fatal November 2020 shooting of 15-year-old

Biden administration detains over 3,000 immigrant children daily

For an independent political response of the working class to the COVID-19 catastrophe in Brazil!

Inland Empire schools reopen as infection rates remain high in Southern California

How Labor and the unions imposed Australia’s anti-strike laws

Sri Lankan court imposes harsh bail conditions on Alton estate workers

Arizona governor fully reopens schools and businesses with union backing

Stellantis’ Big Lie: After six COVID-19 deaths at Warren Truck, plant management claims zero workplace deaths took place in 2020

German financial markets, big companies coin money out of the pandemic

Businessman launches Hindu-supremacist Bharatiya Janata Party in Sri Lanka

The phony “socialist” takeover of the Nevada State Democratic Party

Nearly 10 million US jobs lost one year after start of the pandemic

Canada’s universities and colleges announce reopenings despite threat of COVID-19 third wave

Texas attorney general sues local officials for refusing to lift mask mandates

Detroit Mayor Duggan’s State of the City 2021: Open for business

Warning strikes in Germany’s metal and electric industries: Workers must take control of the struggle out of the hands of IG Metall!

British Gas workers strike continues against “fire and rehire” threat

Industrial action at WISAG: How the European Union deregulated ground services

US convenes the “Quad”—a quasi-military alliance against China

Court ruling in Brazil promotes political rehabilitation of Lula

Australian government promises “cheap flights” to deflect social unrest over mass unemployment and vaccine debacles

Australia: Biloela residents maintain three-year fight for Tamil refugee family’s freedom

EU lifts ex-Catalan regional premier Carles Puigdemont’s parliamentary immunity

President Macron admits French assassination of Ali Boumendjel in the Algerian war

Clashes break out in Senegal after arrest of opposition leader Ousmane Sonko

Washington state governor set to declare state of emergency to force reopening of schools

Biden’s “Mission Accomplished” speech on the coronavirus pandemic

Chicago teachers and parents: Stop the school reopenings! Oppose the policy of social murder!

Opposition mounts among Los Angeles teachers to union’s school reopening agreement

Podemos leader Pablo Iglesias steps down as Spanish deputy prime minister

St. Vincent Hospital nurses in Worcester, Mass. in second week of strike for safe staffing ratios

COVID-19 cases in Ohio schools nearly double in wake of forced reopenings

Mexican government joins Biden administration in renewed crackdown on refugees and migrants

Amazon brings back in-person staff meetings as COVID-19 pandemic surges

Oregon educators: Unite to halt the reopening of schools and save lives!

Manchester Go North West strike: “Solidarity” meeting provides cover for union and Labour bureaucracy

New Zealand: Two years since the Christchurch far-right terrorist attack

European Medicines Agency continues to endorse the safety of the AstraZeneca COVID-19 vaccine

Kentucky Senate passes bill making it a crime to insult the police

2021 Academy Awards nominations: Sticking their heads in the sand

Federal agents, local police crack down on left-wing protests in Portland, Oregon

Right-wing feminist marches in Australia promoted to bury the class issues

Ex-Maoist Socialist Party backs “herd immunity,” austerity in Dutch elections

Los Angeles and Oakland educators to vote this week on unions’ deadly school reopening plans

Stop Stellantis and UAW’s conspiracy to abolish the 8-hour day!

German state elections show growing dissatisfaction with the ruling elite’s “profits before lives” pandemic response

One million Indian bank employees join two-day national strike against privatisation

Army command opposed D.C. request for National Guard presence days before January 6 coup attempt

Capitol Police suspend officer after anti-Semitic book discovered at Capitol Hill security checkpoint

UK’s new military policy: More nuclear missiles, more wars, targeting China and Russia

Eight dead in Atlanta-area massage parlor shootings, including six women of Asian-American descent

Canada’s ruling elite paving way for third, even deadlier wave of COVID-19