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\"The destruction of the Armenians of the Ottoman Empire in 1915-16 was a brutal mass crime that prefigured other genocides in the 20th century. By various estimates, more than a million Armenians were killed and the survivors were scattered across the world. Although it is now a century old, the issue of what most of the world calls the Armenian Genocide of 1915 has not been consigned to history. It is a live and divisive political issue that mobilizes Armenians across the world, touches the identity and politics of modern Turkey, and has consumed the attention of U.S. politicians for years. In Great Catastrophe, the eminent scholar and reporter Thomas de Waal looks at the changing narratives and politics of the Armenian Genocide and tells the story of recent efforts by courageous Armenians, Kurds, and Turks to come to terms with the disaster as Turkey enters a new post-Kemalist era. The story of what happened to the Armenians in 1915-16 is well-known. Here we are told the much less well-known story of what happened to Armenians, Kurds, and Turks in its aftermath. First Armenians were divided between the Soviet Union and a worldwide diaspora, with different generations and communities of Armenians constructing new identities, while bitter intra-Armenian quarrels sometimes broke out into violence. In Turkey, the Armenian issue was initially forgotten and suppressed, only to return to the political agenda in the context of the Cold War, an outbreak of Armenian terrorism in the 1970s and the growth of modern 'identity politics' in the age of genocide-consciousness. In the last decade, Turkey has begun to confront its taboos and finally face up to the Armenian issue. New, more sophisticated histories are being written of the deportations of 1915, now with the collaboration of Turkish scholars. In Turkey itself there has been an astonishing revival of oral history, with tens of thousands of people coming out of the shadows to reveal a long-suppressed Armenian identity. However, a normalization process between the Armenian and Turkish states broke down in 2010. Drawing on archival sources, reportage and moving personal stories, de Waal tells the full story of Armenian-Turkish relations since the Genocide in all its extraordinary twists and turns. He strips away the propaganda to look both at the realities of a terrible historical crime and also the divisive 'politics of genocide' it produced. The book throws light not only on our understanding of Armenian-Turkish relations but also of how mass atrocities and historical tragedies shape contemporary politics\"-- Provided by publisher.

The mirror mark test has encouraged a binary view of self-awareness according to which a few species possess this capacity whereas others do not. Given how evolution works, however, we need a more gradualist model of the various ways in which animals construe a self and respond to mirrors. The recent study on cleaner wrasses (Labroides dimidiatus) by Kohda and colleagues highlights this need by presenting results that, due to ambiguous behavior and the use of physically irritating marks, fall short of mirror self-recognition. The study suggests an intermediate level of mirror understanding, closer to that of monkeys than hominids.

Humans have a deep and innate sense of fairness. Humans, however, are not the only species to react to apparent inequities. Brosnan and de Waal propose that inequity aversion can be broken down into two levels. At the most basic level, individuals react to immediate unequal distribution of a reward for equal effort expended, whereas at the second, they show the ability to accept a current unequal distribution with the expectation that over time distribution will equalize. This second level facilitates cooperation over time and requires the cognitive abilities both to assess current distribution and envision future opportunities for equalization. As cognitive abilities advanced across the primate lineage, this more complex accounting of equal distribution and cooperation may have developed into the complete sense of fairness we see in humans today. Science , this issue 10.1126/science.1251776 The human sense of fairness is an evolutionary puzzle. To study this, we can look to other species, in which this can be translated empirically into responses to reward distribution. Passive and active protest against receiving less than a partner for the same task is widespread in species that cooperate outside kinship and mating bonds. There is less evidence that nonhuman species seek to equalize outcomes to their own detriment, yet the latter has been documented in our closest relatives, the apes. This reaction probably reflects an attempt to forestall partner dissatisfaction with obtained outcomes and its negative impact on future cooperation. We hypothesize that it is the evolution of this response that allowed the development of a complete sense of fairness in humans, which aims not at equality for its own sake but for the sake of continued cooperation.

Traces the parallel stories of nineteenth-century art patron Charles Ephrussi and his unique collection of 264 miniature netsuke Japanese ivory carvings, documenting Ephrussi's relationship with Marcel Proust and the impact of the Holocaust on his cosmopolitan family.

Consolation behavior toward distressed others is common in humans and great apes, yet our ability to explore the biological mechanisms underlying this behavior is limited by its apparent absence in laboratory animals. Here, we provide empirical evidence that a rodent species, the highly social and monogamous prairie vole (Microtus ochrogaster), greatly increases partner-directed grooming toward familiar conspecifics (but not strangers) that have experienced an unobserved stressor, providing social buffering. Prairie voles also match the fear response, anxiety-related behaviors, and corticosterone increase of the stressed cagemate, suggesting an empathy mechanism. Exposure to the stressed cagemate increases activity in the anterior cingulate cortex, and oxytocin receptor antagonist infused into this region abolishes the partner-directed response, showing conserved neural mechanisms between prairie vole and human.

Traces the parallel stories of nineteenth-century art patron Charles Ephrussi and his unique collection of 360 miniature netsuke Japanese ivory carvings, documenting Ephrussi's relationship with Marcel Proust and the impact of the Holocaust on his cosmopolitan family.

Key Points Observational and experimental studies dating back to the 1950s demonstrate that mammals spontaneously help distressed conspecifics. Research emphasizes the untrained, unrewarded nature of this behaviour, which is also biased towards familiar individuals, thus arguing against explanations that are exclusively based on associative learning or conditioning. The perception–action model extends an existing motor theory on overlapping representations to emotional phenomena; it states that observers who attend to a target's state understand and 'feel into' it through personal distributed representations of the target, the state and the situation. Easily observed manifestations of this mechanism are emotional contagion and motor mimicry, which have been demonstrated in many animals. In cognitive forms of empathy, the same representations are accessed from the top-down. Experiments on two common mammalian expressions of empathy — the consolation of distressed individuals and spontaneous assistance to those in need — support the crucial role of caught distress and arousal because these behaviours are suppressed by anti-anxiety medication and engage the same neuropeptide system that supports social attachment. The Russian-doll model seeks to arrange forms of empathy into layers that are built on top of each other — with the layers ranging from emotional contagion to more cognitive forms of empathy — in a functionally integrated whole based on perception–action processes. Perspective-taking is well developed in some non-human species, as manifested by theory-of-mind and targeted helping. One can segregate emotional and cognitive empathy (as well as felt and observed states) in the brains of observers, but all forms require some initial access to the observer's distributed, shared, personal representations of the target's state. At least in the initial phase of processing, this access helps to decode the target's state and provide subsequent processing with content and meaning, even if the shared state is not experienced, or is incomplete or inaccurate. Empathic pain does not usually include the peripheral sensation of the target's injury, but it can include sensory information when the stimuli and task instructions emphasize the specific nature of the feeling at the location of the injury. Empathy is a characteristic of all mammals that ranges from being sensitive to another's emotions to adopting their perspective. In this Review, de Waal and Preston discuss current hypotheses concerning how the emotional states of others are understood in a variety of species. Recent research on empathy in humans and other mammals seeks to dissociate emotional and cognitive empathy. These forms, however, remain interconnected in evolution, across species and at the level of neural mechanisms. New data have facilitated the development of empathy models such as the perception–action model (PAM) and mirror-neuron theories. According to the PAM, the emotional states of others are understood through personal, embodied representations that allow empathy and accuracy to increase based on the observer's past experiences. In this Review, we discuss the latest evidence from studies carried out across a wide range of species, including studies on yawn contagion, consolation, aid-giving and contagious physiological affect, and we summarize neuroscientific data on representations related to another's state.

Harmful algal blooms threaten the water quality of many eutrophic and hypertrophic lakes and cause severe ecological and economic damage worldwide. Dense blooms often deplete the dissolved CO2 concentration and raise pH. Yet, quantitative prediction of the feedbacks between phytoplankton growth, CO2 drawdown and the inorganic carbon chemistry of aquatic ecosystems has received surprisingly little attention. Here, we develop a mathematical model to predict dynamic changes in dissolved inorganic carbon (DIC), pH and alkalinity during phytoplankton bloom development. We tested the model in chemostat experiments with the freshwater cyanobacterium Microcystis aeruginosa at different CO2 levels. The experiments showed that dense blooms sequestered large amounts of atmospheric CO2, not only by their own biomass production but also by inducing a high pH and alkalinity that enhanced the capacity for DIC storage in the system. We used the model to explore how phytoplankton blooms of eutrophic waters will respond to rising CO2 levels. The model predicts that (1) dense phytoplankton blooms in low- and moderately alkaline waters can deplete the dissolved CO2 concentration to limiting levels and raise the pH over a relatively wide range of atmospheric CO2 conditions, (2) rising atmospheric CO2 levels will enhance phytoplankton blooms in low- and moderately alkaline waters with high nutrient loads, and (3) above some threshold, rising atmospheric CO2 will alleviate phytoplankton blooms from carbon limitation, resulting in less intense CO2 depletion and a lesser increase in pH. Sensitivity analysis indicated that the model predictions were qualitatively robust. Quantitatively, the predictions were sensitive to variation in lake depth, DIC input and CO2 gas transfer across the air-water interface, but relatively robust to variation in the carbon uptake mechanisms of phytoplankton. In total, these findings warn that rising CO2 levels may result in a marked intensification of phytoplankton blooms in eutrophic and hypertrophic waters.