Male stegosauruses had larger plates to attract mates and fight off competition.
IBTimesUK celebrates Hubble's quarter-century with 25 of the best images captured by the space telescope.
Nasa's Hubble Space Telescope celebrates 25 years since it was launched on 24 April 1990
Asian hornets are not going to kill us all if they do come over from France this summer.
Young trees are pruned and trained as they grow over moulds to create beautiful furniture.
Australian researchers complete world's first seafloor ocean acidification experiment in Antarctica.
A helicopter drone has been flown onto the Japanese prime minister's office in Chiyoda-ku, Tokyo.
The picture were taken by an unmanned Nasa capsule during the Project Mercury mission.
Exchange of genes between different species has occurred often in nature.
Quake intensity is rising with amount of water injected into waste wells, geologists find.
Based on empirical data, a new study points to climate wiggles skewing climate models.
Without the deforestation the rainforest would have 12% more vegetation.
As utilities play bully to topple popular solar power, it is up to nations to ensure the advantages of solar power are not lost.
Earth Day is celebrated on 22 April to build support for environmental protection around the world.
Ways to help reduce global warming on Earth Day, celebrated on 22 April by Earth Day Network.
The remedies are on papyri found 100 years ago but have only just been translated.
Record-breaking strontium atomic clock achieves most precise and stable levels of all time.
Thick-toed geckos filmed playing with a collar one had managed to remove during pre-launch period.
Tiger cubs rush to the rescue after brother falls into pool at Japanese zoo.
Hubble's successor could raise the stakes in search for aliens, says a scientist at the Space Telescope Science Institute.
Exploration vessel crew has an unexpected encounter with an 11m sperm whale on a routine trip.
A huge storm has battered Australia's east coast, killing three people and washing away houses.
Autonomous fish-inspired robots will help protect shoals of fish from environmental threats.
Bondi Beach closed and drivers warned to stay off roads.
Group threw blanket over animal and tossed it into car trunk.
Two environmentalists killed each week in 2014, with Honduras the most dangerous place to campaign
Chemical analysis of 19th-century champagne provides insight of winemaking practices.
Female vampire squids have reproductive cycles unlike all other soft-bodied cephalopods.
Waste that could have been recovered and recycled was worth $52bn, including 300 tonnes of gold.
Fragments of limestone enclosure wall of 5,000-year-old city discovered in Kom Tuman.