This BioBulletin Web site takes an in-depth look at the Asian longhorn beetle. The site includes text, videos, photographs, and interviews with key scientists.

In the complex life cycle of a digenetic trematode, the cercaria larva is shed from a snail intermediate host and represents a short-lived, aquatic transfer stage to the next host. Due to its temporary free-living existence, the cercarial stage is ideal for a number of investigative projects. Two general experiments will be conducted with the unusually large cercaria of Proterometra macrostoma. Students assess the effect of: (1) different light wavelengths on the vertical swimming burst distance of this type of cercaria and (2) pH and pepsin on the emergence of the P. macrostoma distome (pre-adult) from its cercarial tail. The latter study represents an in vitro simulation of what naturally occurs in the stomach of the centrarchid fish definitive host.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Child Healthcare addresses all the common and important clinical problems in children, including:immunisation history and examination growth and nutrition acute and chronic infections parasites skin conditions difficulties in the home and society.

Why has it been easier to develop a vaccine to eliminate polio than to control influenza or AIDS? Has there been natural selection for a 'language gene'? Why are there no animals with wheels? When does 'maximizing fitness' lead to evolutionary extinction? How are sex and parasites related? Why don't snakes eat grass? Why don't we have eyes in the back of our heads? How does modern genomics illustrate and challenge the field? This course analyzes evolution from a computational, modeling, and engineering perspective. The course has extensive hands-on laboratory exercises in model-building and analyzing evolutionary data.

Symbiosis is defined as one organism living on, in, or with another organism. Three primary categories are mutualism (both organisms benefit), commensalism (commensal benefits and host not affected), and parasitism (parasite benefits and host harmed). Hands-on dissection of host animals provides examples of live symbiotes in all three types of symbiosis: mutualism: termite flagellates and rumen ciliates; commensalism: Leptomonas flagellates in Drosophila; parasitism: fish hosts (monogeneans on gills, larval digeneans and acanthocephalans in liver) and frogs (trematodes in lungs and bladder; ciliates, flagellates and opalinids in large intestine/cloaca). Possible changes in a relationship from commensalism to parasitism are discussed relative to a demonstration of tapeworm life cycle stages in rat and beetle hosts.