A new fossil site in a previously unexplored part of western Madagascar (the Beanka Protected Area) has yielded remains of many recently extinct vertebrates, including giant lemurs (Babakotia radofilai, Palaeopropithecus kelyus, Pachylemur sp., and Archaeolemur edwardsi), carnivores (Cryptoprocta spelea), the aardvark-like Plesiorycteropus sp., and giant ground cuckoos (Coua). Many of these represent considerable range extensions. Extant species that were extirpated from the region (e.g., Prolemur simus) are also present. Calibrated radiocarbon ages for 10 bones from extinct primates span the last three millennia. The largely undisturbed taphonomy of bone deposits supports the interpretation that many specimens fell in from a rock ledge above the entrance. Some primates and other mammals may have been prey items of avian predators, but human predation is also evident. Strontium isotope ratios (87Sr/86Sr) suggest that fossils were local to the area. Pottery sherds and bones of extinct and extant vertebrates with cut and chop marks indicate human activity in previous centuries. Scarcity of charcoal and human artifacts suggests only occasional visitation to the site by humans. The fossil assemblage from this site is unusual in that, while it contains many sloth lemurs, it lacks ratites, hippopotami, and crocodiles typical of nearly all other Holocene subfossil sites on Madagascar.

This article represents a systematic effort to answer the question, What are archaeology’s most important scientific challenges? Starting with a crowd-sourced query directed broadly to the professional community of archaeologists, the authors augmented, prioritized, and refined the responses during a two-day workshop focused specifically on this question. The resulting 25 “grand challenges” focus on dynamic cultural processes and the operation of coupled human and natural systems. We organize these challenges into five topics: (1) emergence, communities, and complexity; (2) resilience, persistence, transformation, and collapse; (3) movement, mobility, and migration; (4) cognition, behavior, and identity; and (5) human-environment interactions. A discussion and a brief list of references accompany each question. An important goal in identifying these challenges is to inform decisions on infrastructure investments for archaeology. Our premise is that the highest priority investments should enable us to address the most important questions. Addressing many of these challenges will require both sophisticated modeling and large-scale synthetic research that are only now becoming possible. Although new archaeological fieldwork will be essential, the greatest pay off will derive from investments that provide sophisticated research access to the explosion in systematically collected archaeological data that has occurred over the last several decades.

We carried out an extensive photometric and spectroscopic investigation of the SPB binary, HD 25558 (see Fig. 1 for the time and geographic distribution of the observations). The ~2000 spectra obtained at 13 observatories during 5 observing seasons, the ground-based multi-colour light curves and the photometric data from the MOST satellite revealed that this object is a double-lined spectroscopic binary with a very long orbital period of about 9 years. We determined the physical parameters of the components, and have found that both lie within the SPB instability strip. Accordingly, both components show line-profile variations consistent with stellar pulsations. Altogether, 11 independent frequencies and one harmonic frequency were identified in the data. The observational data do not allow the inference of a reliable orbital solution, thus, disentangling cannot be performed on the spectra. Since the lines of the two components are never completely separated, the analysis is very complicated. Nevertheless, pixel-by-pixel variability analysis of the cross-correlated line profiles was successful, and we were able to attribute all the frequencies to the primary or secondary component. Spectroscopic and photometric mode-identification was also performed for several of these frequencies of both binary components. The spectroscopic mode-identification results suggest that the inclination and rotation of the two components are rather different. While the primary is a slow rotator with ~6 d rotation period, seen at ~60° inclination, the secondary rotates fast with ~1.2 d rotation period, and is seen at ~20° inclination. Our spectropolarimetric measurements revealed that the secondary component has a magnetic field with at least a few hundred Gauss strength, while no magnetic field was detected in the primary.

The detailed analysis and results of this study will be published elsewhere.

The 23rd season of excavation at Tell Brak took place from March 13 to May 16, 2000, with David Oates as Project Director, Geoff Emberling as Field Director, and Helen McDonald in charge of the house and recording of pottery and objects. The season was co-sponsored by the Metropolitan Museum of Art and the British School of Archaeology in Iraq and was primarily funded by the Adelaide Milton de Groot Fund, in memory of the de Groot and Hawley families, of the Metropolitan Museum of Art; we also gratefully acknowledge significant support from the National Geographic Society (grant #6738–00), the Institute of Fine Arts of New York University, the British School of Archaeology in Iraq, and the McDonald Institute for Archaeological Research at the University of Cambridge. We would like to thank the Director General of Antiquities and Museums in Syria for his encouragement and interest. We also thank Ammar Abdul Rahman from the Department of Antiquities in Damascus, who paid us a visit during the season, as well as our representative from Hassake, Hussein Yusuf. The excavation staff was a pleasure to work with: Donald Hansen, Selma al-Radi, Marta Ameri, Jean Evans, Walton Green, Melanie Hatz, Torben Larsen, Tomasz Pazdej, Laurie Tedesco, David Thomas and Tim Skuldboel were site supervisors; Jack Cheng was registrar and photographer; Henry Wright conducted a series of soundings and gathered controlled samples of material relating to fourth millennium occupation of the mound; Michael Charles and Mette Marie Hald once again ran the botanical sampling programme; Jill Weber analyzed faunal remains; Susan Rees was conservator; and David and Joan Oates supported the project through the off-season and in the field with their expertise and enthusiasm.

The 22nd season of excavations at Tell Brak took place in April and May of 1998, with David Oates as Project Director and Geoff Emberling as Field Director. It is our pleasure to mention institutions and people who made the project such a success. This season was primarily funded by the Adelaide Milton de Groot Fund (in memory of the de Groot and Hawley families) of The Metropolitan Museum of Art. The Carsten Niebuhr Institute of the University of Copenhagen, Dell Computer Corporation and the Museum of Anthropology of the University of Michigan also generously provided funds and equipment. We would like to thank Dr Sultan Muhesen, Director-General of Antiquities and Museums in Syria, for his encouragement and interest, as well as Dr Adnan Bounni, Director of Excavations, and our representative, Abd el Messih Baghdo. The excavation team this season was exceptionally enthusiastic and dedicated. Jack Cheng was registrar, a position that included designing an excavation database as well as photography and drawing; Tim Skuldboel and Torben Larsen were surveyors; Lisa Cooper, Zenia Hoeserich, Stine Rossel, Suanna Selby and Laura Tedesco were site supervisors; Michael Charles and Mette Marie Hald supervised the notation program; Jill Weber worked on faunal material; Jean-François de Lapérouse of the Metropolitan Museum was objects conservator; Henry Wright analysed samples of chipped stone; and Donald Hansen and Joan Oates gave crucial help in architecture, excavation and ceramic analysis. David Oates provided helpful advice and support. We thank them all for their many contributions to work in the field and to this report.

A collection from a small Late Wisconsin site is described. This assemblage exhibits a distinctive coreworking technique and a distinctive variety of fluted points. It is dated on geological grounds to between 11,000 B.C. and 9000 B.C. at a time when spruce stands were probably becoming established in the area. The contrasts between this assemblage and others described from Northeastern North America suggest a number of hypotheses not testable with the available data.