90% of East Asian adolescents in British Columbia are not sexually active, so East Asian parents are doing something right, but the ones who do have sex engage in some risky behavior

The paper in the Canadian Journal of Human Sexuality
also says it is the first population-based survey in Canada that asked East Asian adolescents their reasons for abstaining from sex: the top two reasons for waiting were not feeling ready and wanting to meet the right person. 

In 2011 the Very Large Telescope (VLT) discovered a gas cloud with several times the mass of the Earth accelerating towards the black hole at the center of the Milky Way.   The cloud is now so stretched that its front part has passed the closest point and is traveling away from the black hole at more than 10 million km/h, whilst the tail is still falling towards it.

The black hole at the center of the Milky Way, known as Sgr A* (pronounced Sagittarius A star), is estimated to have a mass of about four million times that of the Sun and is the closest supermassive black hole known - so it is the best place to study black holes in detail.

Despite much research on the many processes that erode rocky coastal cliffs, accurately predicting the nature, location and timing of coastline retreat remains challenging. This is also confounded by the apparently episodic nature of cliff failure. 

Coastline retreat via progressive failure of rocky coastal cliffs

The dominant drivers of coastal erosion, marine and sub-aerial processes, are anticipated in future to increase, so understanding their present and combined efficacy is fundamental to improving predictions of coastline retreat.

When is a tuna more like a seahorse than a marlin?

Science!

The first comprehensive phylogeny of the "spiny-rayed fish," a group that includes about a third of all living vertebrate species, has been published in the Proceedings of the National Academy of Sciences.

After nearly 25 years of searching, three scientists have finally found Waldo. No, not the lovable bespectacled character in children's picture books, but rather an unusual clam they have named Waldo arthuri and which was discovered off the coast of California and British Columbia.

Paul Valentich-Scott from the Santa Barbara Museum of Natural History, and Diarmaid Ó Foighil from the University of Michigan, Museum of Zoology first began discussing this unusual clam back in 1989. Valentich-Scott discovered his strange specimens off the coast of Santa Barbara and Morro Bay, California, while Ó Foighil uncovered his while trawling for invertebrates off Vancouver Island, British Columbia.

Testing a new therapeutic intervention such as a drug or surgical procedure on human subjects is not an option so the vast majority are first tested on animals and only when they have been established in those trials can human trials be considered.

But in recent years cultural campaigns against animal testing have increased, making researchers increasingly leery of them. That means size constraints and limited statistical power, and as a result the scientific literature contains many studies that are either uncertain in their outcomes or even contradictory.