A new study indicates that sharks of the same species can have different personalities.
Certain Port Jackson sharks were bolder than others in tests of the propensity of individuals to emerge from cover and explore a novel, potentially dangerous habitat....
A study of more than 6,000 marine fossils from the Antarctic shows that the mass extinction event that killed the dinosaurs was sudden and just as deadly to life in the polar regions.
Previously, scientists had thought that creatures living...
These are maxilla of the young malleodectid -- a snail-eating marsupial -- found in the fossil cave deposit at Riversleigh. Because this is a juvenile, the massive premolar is still unerupted below the tooth row. Credit: Karen Black and...
These are mating Drosophila fruit flies. Credit: Image: Stefan Luepold, University of Zurich
In the animal kingdom, sperm usually are considerably smaller than eggs, which means that males can produce far more of them. Large numbers of tiny sperm can...
Kalahari meerkats can be habituated to close observation by humans, so it is possible to train them to climb onto electronic balances with small rewards of food or water.Credit: Tim Clutton-Brock
Meerkats live in groups of up to 50 individuals,...
Nile crocodile. Nile crocodiles, Crocodylus niloticus, were responsible for at least 480 attacks on people and 123 fatalities in Africa between 2010 and 2014.Credit: © ekenitr / Flickr
Spotting native alligators and crocodiles in Florida is common, but anyone who...
This is a light microscope image of the five tentacle temnocephalan Temnosewellia c.f rouxi from cultured redclaw crayfish.
Credit: David Blair, James Cook University
A relationship that has lasted for 100 million years is at serious risk of ending, due to...
These are American bullfrogs at the Atlanta Botanical Garden, Georgia.
Credit: Photo courtesy of Alan Cressler, USGS
New U.S. Geological Survey-led research suggests that even though amphibians are severely declining worldwide, there is no smoking gun -- and thus no simple...
Cuttlefish (stock image). Credit: © Kačka a Ondra / Flickr
Humans have changed the world's oceans in ways that have been devastating to many marine species. But, according to new evidence, it appears that the change has so far been...
This is Sclerocormus parviceps, the newly described marine reptile. Credit: Copyright Da-yong Jiang
Two hundred and fifty million years ago, life on earth was in a tail-spin--climate change, volcanic eruptions, and rising sea levels contributed to a mass extinction that...
These kind of corals create fragile and branched colonies, which boost marine biodiversity related to their relation to the life cycle of lots of marine organisms. Credit: Marine Geociences GRC, UB
A scientific team has found in La Fonera...
