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Starting in the early 1970s, a type of programmed cell death called apoptosis began to receive attention. Over the next three decades, research in this area continued at an accelerated rate. In the early 1990s, a second type of programmed cell death, autophagy, came into focus. Autophagy has been studied in mammalian cells for many years. The recen
Sex is the queen of problems in evolutionary biology. Generations of researchers have investigated one of the last remaining evolutionary paradoxes: why sex exists at all. Given that sexual reproduction is costly from an evolutionary point of view, one could wonder why not all animals and plants reproduce asexually. Dozens of contemporary hypotheses attempt to explain the prevalence of sex and its advantages and predict the early extinction of fully asexual lineages. The major theme of this book is: what is the fate of animal and plant groups in which sex is lost? Initial chapters discuss theory behind asexual life: what major disadvantages do asexual groups have to face, what are the geneti...
"The bear knows exactly what the mountain looks like a forest. The sheep, octopus, and ant also know the mountain. It's a meadow! It's surrounded by water...The chamois and snow hare have their opinions too. It seems the mountain looks different to every animal. How can that be? And whose point of view is right?"--
A lovely and tranquil celebration of nature The sun has set, the day has ended, but the night hasn't quite arrived yet. This magical twilight is known as the blue hour. Everything in nature—sky, water, flowers, birds, foxes—comes together in a symphony of blue to celebrate the merging of night and day. With its soothing text and radiant artwork, this elegant picture book displays the majesty of nature and reminds readers that beauty is fleeting but also worth savoring.
Title of the first 10 volumes of the series is Germans to America : lists of passengers arriving at U.S. ports 1850-1855.
The Big Picture Book How Food Grows is full of beautiful illustrations of plants, grains and trees in different habitats, that will encourage children to explore outdoors and find out more about where their food comes from.