Related topics: sperm · fertilizer · offspring · birds · embryos

A case of mistaken identity for Australia's extinct big bird

Australia is renowned for once being home to a group of gigantic birds known as the mihirungs. These birds are distantly related to waterfowl and included the impressive Dromornis stirtoni, the largest bird ever known on ...

Solar Kettle allows for boiling water off the grid

(Phys.org) —A company called Contemporary Energy has unveiled a new device it calls the Solar Kettle. It looks very much like a normal coffee thermos, but has flaps on one side that open to allow for collecting solar energy, ...

'Old' sperm produces healthier offspring

Sperm that live for longer before fertilising an egg produce healthier offspring—according to new research from the University of East Anglia and Uppsala University in Sweden.

Why do some fish eat their own eggs?

Many animals go to great lengths to ensure the survival of their offspring - yet some species actually eat some or all of their babies. Nor is there always an obvious explanation – like a food shortage – for such filial ...

Deep-sea fish use hydrothermal vents to incubate eggs

Some deep-sea skates—cartilaginous fish related to rays and sharks—use volcanic heat emitted at hydrothermal vents to incubate their eggs, according to a new study in the journal Scientific Reports. Because deep-sea skates ...

How does a one-tonne dino hatch its eggs? Carefully

Most dinosaurs buried their eggs and hoped for the best, but some species—including a few hefty ones—built nests and pampered unhatched offspring much as birds do today, researchers reported Wednesday.

At Long Last, How Plants Make Eggs

(PhysOrg.com) -- A long-standing mystery surrounding a fundamental process in plant biology has been solved by a team of scientists at the University of California, Davis.

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