An important function of the human nose is to warm and humidify the air that we breathe in. This is important so as to prevent the inner respiratory tract from drying up, which can lead to infections. Because the shape of the nose and the... click to read more

Coral reefs are ecosystems of extraordinary diversity. Considered "the rainforests of the sea", they contain ~35% of described marine species despite only occupying 0.2% of the world's ocean. Although they are extremely important habitat providers and form large living structures (some reefs can be seen... click to read more

Nitrogen is required by all living things, but too much of it can be a problem for aquatic ecosystems. Excess reactive nitrogen (nitrate and ammonium, forms that can be used directly by plants and algae) can cause lake eutrophication which can include harmful algal blooms,... click to read more

Every year, many of us gaze in fascination at the movement of nature's clock, looking forward to seeing wild plants coming into bloom or the arrival of the first migrant birds. Less obvious, but just as dramatic, populations of phytoplankton bloom below the surface of... click to read more

Aptly named "Rainforests of the Sea", tropical coral reefs are one of the most biodiverse ecosystems on the planet. Much like how trees of a forest provide shelter for plants and animals living within, corals reefs provide food and shelter for millions of species ranging... click to read more